Madagascar's largest and probably most inaccessible national park combines 2,300 square kilometres of rainforest with three marine parks off the coast, all part of a larger UNESCO World Heritage site. Getting access to the park includes a flight to Maroantsetra where the main park office, that organises guides and porters, is located. Getting there over land requires an adventures two-or-three-day journey from Antananarivo. Visitors who make it are rewarded with pristine rainforest and an abundance of wildlife, mostly undisturbed by human activities. Motorised vehicles are banned in the park, which have no roads, limiting any travel to treks, bicycling or boating around the peninsula. Travelling along Madagascar's east coasts requires a five-day trek between Maroantsetra and Antalaha. The shortest treks are three days long, with the longest being a few weeks, sleeping in basic conditions in villages or tents throughout the park.