A 15 km (10 mile) four to seven hour hike from Torrent Bay to Marahau. (Three to five hours of actual walking time, with about 300 metres of elevation gain.) Take the boat taxi from Marahau to Torrent Bay, and then walk back to Marahau. Be aware that you can only depart Marahau on the 9am or 10:30am boats to Torrent Bay. Later boats are not allowed to drop you off at Torrent Bay. This is the boat taxi day hike in Abel Tasman that I normally recommend to reasonably fit people. If you want a shorter hike, start from Anchorage instead. If you are very fit and want a full summer day's hiking, start from Bark Bay.