Also called "car camping", camping on planned campgrounds where it is close to a vehicle, with certain amenities (such as bathrooms and stores) and emergency aid
The opposite of frontcountry, where no amenities are readily available and motorized vehicles cannot reach the camping site. It will require some physical exertion such as hiking or canoeing to travel to the location or to move from place to place
An outdoor finding activity, in which individual or group run or walk to find and reach a series of control points. It requires navigational skills with the use of a compass or topographical map or even trail signs as guide in an unfamiliar terrain
The term "geocache" comes from the words "geo" meaning earth and "cache" meaning French for hidden location of a place. These meaning aims to find or secret hidden items in not easily accessible places like wilderness.
A form of walking, undertaken with the specific purpose of exploring and enjoying the scenery. It usually takes place on trails in areas of relatively unspoiled wilderness. This recreational activity is a little bit different from mountaineering because trekking doesn't follow known trails that other climbers use to reach the destinations. Trekking is more on exploring the mountain and wilderness with unknown route to follow.
In USA, the common term for trekking is backpacking. In New Zealand it is called as tramping. In the Philippines, trekking is a form primarily used for this recreational activity.