Boat captains will take shifts driving the five boats in Nyad's small armada.

CNN: Nyad: Swim shows 60s 'not too late' for goals

The hotel has its own wildlife biologist and photographer, Tenley Thompson, who created the programme and trained a team of naturalists to take small groups (with at least one guide for every five hotel guests) on customised wildlife safari tours through Bridger Teton National Forest, Grand Teton National Park and the National Elk Refuge.

BBC: The best of the West in Jackson Hole