Sea kayak

A modern sea kayak off west Wales

A sea kayak or touring kayak is a kayak developed for the sport of paddling on open waters of lakes, bays, and the ocean. Sea kayaks are seaworthy small boats with a covered deck and the ability to incorporate a spray deck. They trade off the maneuverability of whitewater kayaks for higher cruising speed, cargo capacity, ease of straight-line paddling, and comfort for long journeys.

Sea kayaks are used around the world for marine (sea) journeys from a few hours to many weeks, as they can accommodate one to three paddlers together with room for camping gear, food, water, and other supplies. A sea kayak usually ranges anywhere from 10–18 feet (3.0–5.5 meters) for solo craft, and up to 26 feet (7.9 meters) for tandem craft. Width may be as little as 21 in (53 cm), and may be up to 36 in (91 cm).

Origins

Main article: Kayak
Inuit seal hunter in a kayak, armed with a harpoon.

Contemporary sea kayaks trace their origin to the native boats of Alaska, northern Canada, and Southwest Greenland. Eskimo hunters developed a fast seagoing craft to hunt seals and walrus.[1] The ancient Aleut name for a sea kayak is Iqyak,[2] and earliest models were constructed from a light wooden frame (tied together with sinew or baleen) and covered with sea mammal (sea lion or seal) hides. Archaeologists have found evidence indicating that kayaks are at least 4000 years old.[3] Wooden kayaks and fabric kayaks on wooden frames (such as the Klepper) dominated the market up until the 1950s, when fiberglass boats were introduced. Rotomolded plastic kayaks first appeared in 1984.

Design

Kayaking in a double on Lake Union in Seattle, USA

Modern sea kayaks come in a wide array of materials, designs, and sizes to suit a variety of intended uses. In sea kayaking, where the designs continue along primarily traditional lines, the primary distinction is between rigid kayaks and folding kayaks. Folding kayaks are in some ways more traditional boats, being similar in design to skin-on-frame kayaks used by native people. Modern folding kayaks use ash and birch or contemporary materials such as aluminum for the frame, and replace the sealskin covering with synthetic waterproof fabrics. Unlike native kayaks, folding kayaks can be easily disassembled and packed for transport. Many folding kayaks include inflatable sponsons that improve the secondary stability of the vessel, helping to prevent capsize. More recently, a class of inflatable folding kayaks has emerged, combining a more limited rigid frame with a tightly inflated skin to produce greater rigidity than an inflatable boat alone.

In recent years, there has been an increase in production of sit on top kayaks suitable for sea use. This has resulted in a new market for paddlers looking for the versatility of a sit on top, with seaworthy performance. Sit on top kayaks are a common choice for sea kayakers who prefer the sit on top versatility, but do not want to sacrifice performance.

Most rigid sea kayaks also derive from the external designs of native vessels, especially those from Greenland, but the strength of modern materials such as fiberglass, rotomolded plastic and carbon fiber eliminate the need for an internal frame, though significantly increasing weight. Modern skin-on-frame sea kayaks constructed with nylon skins represent an ultralight niche within the rigid sea kayak spectrum. Some recent design innovations include:

A different class of vessel emerged in the 1960s, the Surf ski, a long, narrow boat with low inherent stability that is intended for use in surf and following waves.

Size

Most production sea kayaks are between 12 and 24 feet (3.66 and 7.32 m) in length, the larger kayaks often built for two (or in rare cases, three) paddlers. The width (beam) of typical kayaks varies from 18 to 32 inches (457 to 813 mm), though specialized boats such as surf skis may be narrower. The length of a kayak affects not only its cargo capacity (for both gear and paddlers) but may also affect its "tracking" ability—the ease with which the boat travels in a straight line. While other design features also impact tracking, very long kayaks are easier to paddle straight (and harder to turn). The width of a kayak affects the cargo capacity, the maximum size of the cockpit (and thus the size of the paddler in that cockpit), and (to a degree that depends on the design of the hull) the stability.

Material

A sea kayak constructed from plywood, epoxy and fibreglass

Most rigid production kayaks are now made out of fiberglass, rotomolded polyethylene, thermoformed plastic, blow moulded polyethylene or carbon-kevlar. More exotic materials include carbon fiber and foam core. Some kayaks are hand-built from plywood or wood strips covered with fiberglass. Skin-on-frame kayaks are built on wood or aluminum frames covered in canvas, dacron, or other fabrics, and may include inflatable tubes called sponsons.

Marine Grade plywood available today provides a high strength to weight ratio for kayak construction.

Bow, stern, and deck

There are many design approaches for the bow, stern, and deck of kayaks. Some kayaks have upturned bows, which are meant to provide better performance when paddling into waves, as well as better wave-shedding ability. Other kayaks achieve this through increased buoyancy in the bow. Kayaks with unobstructed stern decks may ease certain types of self-rescue. Waterproof bulkheads in modern kayaks provide flotation in the event of capsize.

Sea kayak decks typically include one or more hatches for easy access to the interior storage space inside. Kayak decks often include attachment points for deck lines of various kinds, which are aids in self-rescue and attachment points for above-deck equipment.

Cockpits can be of several designs. They can be large or small. A large keyhole cockpit can give the advantages of both, and combine firm contact between paddler and boat, while offering relatively easier access.

Equipment

Sea kayaking is a popular way to explore Kealakekua Bay, Hawaii.

Sea Kayaks have a wide range of hull designs, which greatly expands their range of performance. Designs can accommodate a wide range of physical fitness, or usage. Boats come in many lengths, whereby shorter boats are generally more maneuverable, and longer boats generally travel straighter and faster. Width of beam can affect a boat's stability, speed, and ability to bring to an edge. The amount of rocker (the curve from bow to stern) can greatly affect the ability of a boat to turn.

Many have steering gear or tracking aids in the form of rudders or skegs. In most cases rudders are attached at the stern and operated by lines (wire or synthetics such as Spectra) from foot pedals in the cockpit. Rudders are typically retractable for beach landings. Skegs are typically retractable straight blades that drop from a well in the stern of the boat. Both devices assist in paddling when a strong wind or waves are coming from a direction other than directly in front.[4] Some Skegs may be more effective at countering pitch, roll and yaw.[5][6][7][8][9]

Paddles

Sea-kayak paddles, and the associated paddling styles, fall into three basic classifications:

two roughly spoon-shaped blades at either end of a cylindrical shaft. This paddle style was developed for fast acceleration and sudden maneuvering in Whitewater kayaking, and then back-ported to sea-kayaking. Euro paddles can be made of aluminum, plastic or even wood, but the best are usually formed of more expensive materials like carbon-fiber for lightness. Often the two blades are feathered, or set at an angle relative to each other (both for ergonomic efficiency, and so that as one blade moves backwards through the water, the opposite blade moving forward through the air presents its edge, rather than its face). This does make it less efficient with the wind on the side or behind.
A European style kayak paddle, (a) top view, (b) axial view, (first angle projection)
Relatively narrow blades which are rounded and full near the loom and blade roots, and becoming oval near the blade tips. Some paddles feature a "shoulder", or abrupt transition between the loom and blade roots. Greenland paddle blades are usually never feathered. Short Greenland paddles (generally one arm-span in length), called storm paddles, are used with a sliding stroke, where the hands are shifted along the blades for each stroke. Storm paddles are often used as spares and in very windy locations, as there is very little outboard blade to catch the wind.
A Greenland style kayak paddle
The blade of the paddle is shaped with a profile like a wing. When used with a special stroke, the blade actually produces lift as it moves through the water, enabling the kayaker to produce more forward motion than with any other kind of paddle. The paddling technique is different from the European style paddle though the same motion is how the Greenland paddle works with its narrow blade. It is most often used in racing, but also sees some limited use in recreational paddling such as touring.

Dimensions

True Sea kayaks, not to be mistaken for wider, more stable recreational kayaks, come in many designs. The length of a solo sea kayak can range anywhere from 14 to 20 feet (4.3 to 6.1 m) long, and tandem kayaks can range from 18 to 24 feet (5.5 to 7.3 m) long. Sea kayaks can range in width from 20 to 24 inches (510 to 610 mm) (57–76 cm or 22–30 in). Wider touring kayaks of 23 to 24 inches (580 to 610 mm) (66–76 cm or 26–30 in) are better for bigger paddlers, or small/average sized paddlers looking for more initial stability and maneuverability. Narrower beams of 20 to 23 inches (510 to 580 mm) (56–63.5 cm or 22.0–25.0 in) are good for small-medium-sized paddlers who want more speed and less maneuverability. And lastly, kayak depth (or the height from the hull to the highest area of the deck) can range from 11 to 13 inches (280 to 330 mm) (33–40 cm or 13–16 in) high.

This design is typical of modern sea kayaks and has a low rear deck for easy rolling, a white water cockpit, compartments that allow the kayaker to reach into them while at sea, and a sloping rear bulkhead that enables the kayak to be emptied by lifting the bow.

Safety

Sea kayaking at Trunk Bay on St. John

A sea kayak's primary safety device is its paddler. Although some kayakers consider a well-practised self-righting move such as an Eskimo roll to be essential to safe open-water kayaking, it is the technique of bracing that every well-trained, experienced kayaker practises to maintain an upright position in their kayak. Practice in bracing is often neglected by inexperienced kayakers once they have learned the Eskimo roll. However, the reality is that having to roll really means having to recover from a failed brace. Being in the capsized position in some environments due to missing a brace can put the paddler in danger of colliding with obstacles under the water. Staying upright in surf zones, rock gardens, and rivers is most important and is only accomplished through well practised and successful bracing.

While there are a number of techniques for unassisted righting and re-entry of a kayak after a capsize and turtling, most paddlers consider it safest to paddle with one or more others, as assistance is useful if attempting to roll up solo fails. Even if the assistance fails to get you righted, it's a lot easier to climb back into a boat in the open sea if you've got another boat and paddler to help and your boat's been emptied of water first. Nonetheless, experienced paddlers do attempt open water crossings unaccompanied, and many major long-distance kayak expeditions have been carried out solo.

The use of a Paddle float self rescue device, generally consisting of foam, or inflatable bag, attached to the end of a paddle, allows a paddler to use the paddle as an outrigger, while climbing back into the cockpit. Be sure if you use an inflatable paddle float that you use a dual chambered model, but only train with one chamber inflated. A double chambered device will give you redundancy in case of a failure in one chamber. Training with one chamber inflated won't leave you handicapped if one chamber does fail. In many areas (Canada for instance) this is a coast guard required item. This fairly reliable rescue technique, if well practised, allows one to paddle with confidence when not equipped with a 'bombproof' roll.

There is a strong culture of self-sufficiency amongst sea kayakers and extensive safety equipment such as compass, towing lines, manual pumps, repair kits including wet application repair tape, flares, paddle leash, spare paddles, and survival gear are routinely carried; along with supplies of food and a flask of hot beverage for non-emergency use. GPS, charts, lights, radios and cell phones, and radar reflectors are also sometimes carried.

Forms of sea kayaking

Kayak Sailing on the Columbia River

Kayak Sailing

Developed by kayak enthusiasts, Kayak sails can supplement or effectively eliminate the need for paddling. Using a sail can increase offshore range and allow longer expeditions. Use of a sail for touring, has established a strong following with recreational sea kayakers, expedition paddlers, and adventure racers.

Sea Kayaking at Wilsons Promontory in Victoria, Australia

Expedition Trips

Weekend trips with overnight camping are popular among recreational kayakers and many combine kayaking with wildlife watching. Modern sea kayaks are designed to carry large amounts of equipment and unsupported expeditions of two weeks or more are conducted in environments ranging from the tropics to the Arctic. Expedition kayaks are designed to handle best when loaded, so it may be necessary to ballast them on shorter trips.

Surf Kayaking

For more details on this topic, see Surf Kayaking.
For more details on this topic, see Surf skis.

Closely related to surf boards and requiring a mix of surfing and kayaking skills, a wide range of sea kayaks are specifically designed for the sport of wave surfing.

Sea Fishing

Main article: Kayak fishing

The sea kayak has long been a means of transportation and a means of accessing fishing grounds and kayak fishing has gained popularity due to the availability of purpose built stable designs. This technological development also solves some ergonomic problems that are associated with sitting for long hours without being able to change positions and special kayaks for fishing are accessorized for this sport, including specially-designed hatches, built-in rod holders, catch bags and equipment mounts.

Many of the techniques used in kayak fishing are the same as those used on other fishing boats. The difference is in the set-up, how each piece of equipment is fitted to the kayak, and how each activity is carried out on such a small craft. Contemporary kayaks can be equipped with fishing aids such as rod holders, electronic fish-finders and live-bait containers. Kayak anglers target highly prized bottom feeders like halibut and cod and also pelagics like amberjacks, tuna, sailfish, wahoo, and even marlin.

Pioneering sea kayak expeditions

Pre-1900
1920s
Map of Oskar Speck journey (1932-1939) from Germany to Australia
1930s
1950s
1960s
1970s
1980s
1990s
2000s
2010s

See also

Wikimedia Commons has media related to Sea kayaks.
Wikivoyage has a travel guide for Sea kayaking.

References

  1. Hutchinson, Derek. C. (1994). The Complete Book of Sea Kayaking. A&C Black. pp. 177–181. ISBN 0-7136-6675-7.
  2. Traditional Arctic Kayak Symposium (TAKS) San Simeon California
  3. Made in Anglesey, paddled in the Arctic: the Inuits' plastic kayak rules the waves TimesOnline December 2006
  4. Hutchinson, Derek. C. (1994). The Complete Book of Sea Kayaking. A&C Black. pp. 3–4. ISBN 0-7136-6675-7.
  5. Watson, Tom (February 12, 2014). "Rudders & Skegs: Maneuvering Aids". paddling.net. Retrieved February 12, 2014.
  6. "Rudders vs Skegs". Sea Kayaker Magazine. May 28, 2008. Retrieved February 15, 2014.
  7. "Fixing up your boat: Installing a retractable skeg". Chesapeake Lightcraft. Retrieved February 15, 2014.
  8. gnarlydog. "Retrofitting your ruddered kayak with a skegg". gnarlydognews. Retrieved February 15, 2014.
  9. "How does a kayak skeg work". Atlantic Kayak Tours. 2013. Retrieved February 15, 2014.
  10. MacRitchie, Scot, The Aberdeen Kayak and its Congeners, Royal Scottish Geographical Society Magazine, Feb 12, 1912, http://ads.ahds.ac.uk/catalogue/adsdata/PSAS_2002/pdf/vol_046/46_213_241.pdf
  11. Mahaffey, Dexter (April 2003). "The 10 All-time Greatest Sea Kayaking Expeditions". Paddler Magazine.
  12. Popular Mechanics.
  13. Lindermann, Hannes (1998). Alone at Sea A Doctor's Survival Experiments During Two Atlantic Crossings in a Dugout Canoe and a Folding Kayak. Germany: Pollner Verlag. ISBN 3-925660-27-5.
  14. SimonWillis.net: Hamish's Kayaking Kilms Showing at Edinburgh Mtn Film Fest. Simon-willis.blogspot.co.uk (2011-10-07). Retrieved on 2013-07-12.
  15. Paddler Magazine Online : The 10 All-time Greatest Sea Kayaking Expeditions
  16. :: Dragoman Doğa Sporları Merkezi ::
  17. In the wake of the Jomon
  18. Cold Oceans
  19. November 2, 2005: South Georgia Expedition Update | Outside Online
  20. טרה סנטה קיאקים ימיים. Seakayak.co.il. Retrieved on 2013-07-12.
  21. "Search for kayaker called off". The Sydney Morning Herald. 12 February 2007.
  22. Home :: Crossing the Ditch - Trans-Tasman Kayak Expedition :: James Castrission & Justin Jones
  23. Chris Millington is fundraising for Help for Heroes. Justgiving.com. Retrieved on 2013-07-12.
  24. Sea Kayak Falkland '09. Seakayakfalkland.blogspot.com. Retrieved on 2013-07-12.
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  26. Flatman, Elizabeth. "Kayakers complete first successful crossing to Faroes in aid of RNLI". RNLI. Retrieved 11 May 2012.
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