I'd want a clear, warm lagoon along the bike path so you could run in and swim a 1-mile course out and back. You then climb out and run a cross-country course on a plush track with coconut stands lined along the 6 mile foot path. At the end of the run, you hop on a mountain bike and ride up a trail to a hilly terrace with a cabana and a swimming pool. Cool down in the pool, and then get on a road bike to fly down the other side of the hill for a 50 mile road course with 90 degree banked turns to add some variety.