Bhutan

A hot air balloon is a lighter-than-air aircraft consisting of a bag, called an envelope, which contains heated air. Suspended beneath is a gondola or wicker basket (in some long-distance or high-altitude balloons, a capsule), which carries passengers and a source of heat, in most cases an open flame caused by burning liquid propane. The heated air inside the envelope makes it buoyant since it has a lower density than the colder air outside the envelope. As with all aircraft, hot air balloons cannot fly beyond the atmosphere. Unlike gas balloons, the envelope does not have to be sealed at the bottom, since the air near the bottom of the envelope is at the same pressure as the surrounding air.

In modern sport balloons the envelope is generally made from nylon fabric and the inlet of the balloon (closest to the burner flame) is made from a fire resistant material such as Nomex. Modern balloons have been made in all kinds of shapes, such as rocket ships and the shapes of various commercial products, though the traditional shape is used for most non-commercial, and many commercial, applications.

A is an overland journey, usually a trip by tourists to Africa. In the past, the trip was often a big-game hunt, but today, safari often refers to trips to observe and photograph wildlife—or hiking and sightseeing, as well.

The Swahili word safari means journey, originally from the Arabic meaning a journey; the verb for “to travel” in Swahili is kusafiri. These words are used for any type of journey, e.g. by bus from Nairobi to Mombasa or by ferry from Dar es Salaam to Unguja. Safari entered the English language at the end of the 1850s thanks to Richard Francis Burton, the famous explorer.
The Regimental March of the King’s African Rifles was ‘Funga Safari’, literally ‘tie up the March’, or, in other words, pack up equipment ready to march.

In 1836 William Cornwallis Harris led an expedition purely to observe and record wildlife and landscapes by the expedition’s members. Harris established the safari style of journey, starting with a not too strenuous rising at first light, an energetic day walking, an afternoon rest then concluding with a formal dinner and telling stories in the evening over drinks and tobacco.

Paragliding is the recreational and competitive adventure sport of flying paragliders: lightweight, free-flying, foot-launched glider aircraft with no rigid primary structure. The pilot sits in a harness suspended below a fabric wing comprising a large number of interconnected baffled cells. Wing shape is maintained by the suspension lines, the pressure of air entering vents in the front of the wing, and the aerodynamic forces of the air flowing over the outside.

Despite not using an engine, paraglider flights can last many hours and cover many hundreds of kilometers, though flights of one to two hours and covering some tens of kilometers are more the norm. By skillful exploitation of sources of lift, the pilot may gain height, often climbing to altitudes of a few thousand meters.

A climbing peak may refer to a mountain or hill peak or a rock formation that has to be ascended by climbing. The term is common in Germany where it is specifically used of free-standing rock formations in the climbing regions of Saxon Switzerland, Zittau Mountains and other nearby ranges in the German Central Uplands that can only be summitted via climbing routes of at least grade I on the UIAA scale or by jumping from nearby rocks or massifs. As a general rule, they must have a topographic prominence of at least 10 metres to qualify. In Saxon Switzerland the Saxon Climbing Regulations do not require any minimum height, but define climbing peaks as

Another requirement is its recognition by the responsible sub-committee of the Saxon Climbers’ Federation (SBB) and the responsible conservation authorities. For hikers these authorized summits may often be recognised by the presence of a summit register and abseiling anchor points.

In other climbing areas, such as those in Bohemian Switzerland, there are other exceptions. There, climbing peaks only need to have a significant rock face – the lowest side of which has to be less than 10 m high, but at least 6 m high.

Scuba diving is a mode of underwater diving where the diver uses a self-contained underwater breathing apparatus (scuba) which is completely independent of surface supply, to breathe underwater.Scuba divers carry their own source of breathing gas, usually compressed air, allowing them greater independence and freedom of movement than surface-supplied divers, and longer underwater endurance than breath-hold divers. Open circuit scuba systems discharge the breathing gas into the environment as it is exhaled, and consist of one or more diving cylinders containing breathing gas at high pressure which is supplied to the diver through a regulator.

They may include additional cylinders for range extension, decompression gas or emergency breathing gas. Closed-circuit or semi-closed circuit rebreather scuba systems allow recycling of exhaled gases. The volume of gas used is reduced compared to that of open circuit, so a smaller cylinder or cylinders may be used for an equivalent dive duration. Rebreathers extend the time spent underwater compared to open circuit for the same gas consumption; they produce fewer bubbles and less noise than open circuit scuba which makes them attractive to covert military divers to avoid detection, scientific divers to avoid disturbing marine animals, and media divers to avoid bubble interference.

Tourism is travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours. Tourism may be international, or within the traveller’s country. The World Tourism Organization defines tourism more generally, in terms which go “beyond the common perception of tourism as being limited to holiday activity only”, as people “traveling to and staying in places outside their usual environment for not more than one consecutive year for leisure, business and other purposes”.