2 miles around the island (launch at north Vacation Island). Add 0.2 miles from Bahia Point. 1 mile from Crown Point. 2 miles from Aqua Adventures. 2.5 from South Shores.
Vacation Island makes a great loop from almost any launch point in Mission Bay. Stop at the Barefoot Bar for a beverage or a meal on your route. Make your crossings near the bridges if possible and stay very close to shore along the east side of the island to stay out of power boat/jet ski traffic. At the south east corner of the island, pay special attention to the launch area and don't block boats coming and going from here.