A boat is a watercraft of a large range of types and sizes, but generally smaller than a ship, which is distinguished by its larger size, shape, cargo or passenger capacity, or its ability to carry boats.
A kayak is a small, narrow human-powered watercraft typically propelled by means of a long, double-bladed paddle. The word kayak originates from the Greenlandic word qajaq.
Whitewater forms in the context of rapids, in particular, when a river's gradient changes enough to generate so much turbulence that air is trapped within the water. This forms an unstable current that froths, making the water appear opaque and white.
Ochroma pyramidale, commonly known as the balsa tree, is a large, fast-growing tree native to the Americas. It is the sole member of the genus Ochroma. The tree is famous for its wide usage in woodworking, due to its softness and its high strength compared to its low density. The name balsa is the Spanish word for "raft."
The Kon-Tiki expedition was a 1947 journey by raft across the Pacific Ocean from South America to the Polynesian islands, led by Norwegian explorer and writer Thor Heyerdahl. The raft was named Kon-Tiki after the Inca god Viracocha, for whom "Kon-Tiki" was said to be an old name. Heyerdal’s book on the expedition was entitled The Kon-Tiki Expedition: By Raft Across the South Seas. A 1950 documentary film won the Academy Award for Best Documentary Feature. A 2012 dramatized feature film was nominated for the Academy Award for Best Foreign Language Film.
A pontoon bridge, also known as a floating bridge, uses floats or shallow-draft boats to support a continuous deck for pedestrian and vehicle travel. The buoyancy of the supports limits the maximum load that they can carry.
An inflatable boat is a lightweight boat constructed with its sides and bow made of flexible tubes containing pressurised gas. For smaller boats, the floor and hull are often flexible, while for boats longer than 3 metres (9.8 ft), the floor typically consists of three to five rigid plywood or aluminium sheets fixed between the tubes, but not joined rigidly together. Often the transom is rigid, providing a location and structure for mounting an outboard motor.
A personal flotation device is a flotation device in the form of a vest or suit that is worn by a user to prevent the wearer from drowning in a body of water. The device will keep the wearer afloat with their head and mouth above the surface – they do not have to swim or tread water in order to stay afloat and can even be unconscious.
Tubing, also known as inner tubing, bumper tubing, towed tubing, biscuiting, or kite tubing, is a recreational activity where an individual rides on top of an inner tube, either on water, snow, or through the air. The tubes themselves are also known as "donuts" or "biscuits" due to their shape.
The Chincha culture was the culture of a Native Peruvian people living near the Pacific Ocean in south west Peru. The Chincha Kingdom and their culture flourished in the Late Intermediate Period, also known as the regional states period of pre-Columbian Peru. They became part of the Inca Empire around 1480. They were prominent as sea-going traders and lived in a large and fertile oasis valley. La Centinela is an archaeological ruin associated with the Chincha. It is located near the present-day city of Chincha Alta.
Timber rafting is a method of transporting felled tree trunks by tying them together to make rafts, which are then drifted or pulled downriver, or across a lake or other body of water. It is arguably, after log driving, the second cheapest means of transporting felled timber. Both methods may be referred to as timber floating. The tradition of timber rafting cultivated in Austria, the Czech Republic, Germany, Latvia, Poland and Spain was inscribed on UNESCO Representative List of the Intangible Cultural Heritage of Humanity in 2022
In early periods of North American industrial development, an ark was a temporary boat used for river transport in eastern North America before slack-water canals and railroads made them obsolete. Because they could be built using relatively crude hand tools, arks were built in American colonial and early republic times, primarily to carry cargo downriver on the spring freshets, and especially to carry milled lumber, charcoal and other forest products and bulk agricultural produce to a city or a port downriver. While logs were often tied into rafts, on long trips which could take weeks, the rafts would be accompanied by such arks as crew support quarters. Deep rivers allowed large log arks as described below instead of less controllable rafts. Since by 1800, most eastern towns and cities were short on heating fuels, even badly processed timber or planks could readily be sold at the destinations.
Packraft and trail boat are colloquial terms for a small, portable inflatable boat designed for use in all bodies of water, including technical whitewater and ocean bays and fjords. A packraft is designed to be light enough to be carried for extended distances. Along with its propulsion system and safety equipment the entire package is designed to be light and compact enough for an individual to negotiate rough terrain while carrying the rafting equipment together with supplies, shelter, and other survival or backcountry equipment. Modern packrafts vary from inexpensive vinyl boats lacking durability to sturdy craft costing over US $1,000. Most weigh less than 4 kg (9 lbs) and usually carry a single passenger. The most popular propulsion systems involve a kayak paddle that breaks down into two to five pieces. Most often they are paddled from a sitting position, although kneeling can be advantageous in some situations.
The Bee Cliff is a prominent northeast Tennessee geological limestone feature with high caves that overlooks the Watauga River and the Siam community of Carter County, Tennessee.
A pontoon boat is a flattish boat that relies on floats to remain buoyant. These pontoons contain much reserve buoyancy and allow designers to create large deck plans fitted with a variety of accommodations including expansive lounge areas, stand-up bars, and sun pads. Better tube designs have allowed builders to put ever-increasing amounts of horsepower on the stern. Pontoon boat drafts may be as shallow as eight inches, which reduces risk of running aground and underwater damage, this allows it to come close to shore to pick up and drop off loads.
A lifeboat or liferaft is a small, rigid or inflatable boat carried for emergency evacuation in the event of a disaster aboard a ship. Lifeboat drills are required by law on larger commercial ships. Rafts (liferafts) are also used. In the military, a lifeboat may double as a whaleboat, dinghy, or gig. The ship's tenders of cruise ships often double as lifeboats. Recreational sailors usually carry inflatable liferafts, though a few prefer small proactive lifeboats that are harder to sink and can be sailed to safety.
Floats are airtight hollow structures, similar to pressure vessels, designed to provide buoyancy in water. Their principal applications are in watercraft hulls, aircraft floats, floating pier, pontoon rhinos, pontoon causeways, and marine engineering applications such as salvage.
Reed boats and rafts, along with dugout canoes and other rafts, are among the oldest known types of boats. Often used as traditional fishing boats, they are still used in a few places around the world, though they have generally been replaced with planked boats. Reed boats can be distinguished from reed rafts, since reed boats are usually waterproofed with some form of tar. As well as boats and rafts, small floating islands have also been constructed from reeds.
Between 1966 and 1973, Spanish explorer Vital Alsar led three expeditions to cross the Pacific Ocean by raft – La Pacífica in 1966, La Balsa in 1970 and Las Balsas in 1973. Travelling from Ecuador, South America, to Australia, the first expedition failed, but the second and third succeeded, both setting the record for the longest known raft voyages in history – 8,600 miles (13,800 km) and 9,000 miles (14,000 km) respectively.
Pre-Columbian rafts plied the Pacific Coast of South America for trade from about 100 BCE, and possibly much earlier. The 16th-century descriptions by the Spanish of the rafts used by Native Americans along the seacoasts of Peru and Ecuador has incited speculation about the seamanship of the Indians, the seaworthiness of their rafts, and the possibility that they undertook long ocean-going voyages. None of the prehistoric rafts have survived and the exact characteristics of their construction and the geographical extent of their voyages are uncertain.
Three Arks for a log drive on Pine Creek, in Lycoming or Tioga County, Pennsylvania. The left ark was for cooking and dining, the middle ark was the sleeping quarters and the right ark was for the horses. The arks were built for just one log drive and then sold for their lumber. The line of the Jersey Shore, Pine Creek and Buffalo Railway can be seen on the eastern shore: the mountainside behind it is nearly bare of trees from clearcutting. [4]
Raft carrying visitors to Tom Sawyer Island at Disneyland, about 1960
People on the raft in Estonia, 1944
Raft used to bridge vehicles at Citarum River, Karawang, West Java, Indonesia
Rafting on the Dunajec River at Pieniny, about 2005–2010
A woman using a raft to transport her daughter and goats
