ALOHA FROM LINDA: There's a small island in Oahu's Kaneohe Bay that everyone calls 'Coconut Island'. This 28-acre island's real name is Mokuoleo, and was used to film parts of Gilligan's Island, the 1960's TV show about a shipwrecked group of characters.
The island is privately owned but is now being run by the University of Hawaii's Institute of Marine Biology. Even though the island is a working research center, the Institute has tours of its trails and marine ponds. I enjoyed this outing because as a senior with back problems, it's not as strenuous as hiking.
You start off with a nice short boat ride out to the island, the guided tour is about 2 to 3 hours long, and your group walks through natural paths and exhibits. Marine corals and invertebrates can be seen by peering into the shallow ponds, and there are also specimens in large plastic bins that are being bred or observed. While you examine the exhibits, a guide explains their research.
Food is not served on the island, but there are pleasant rest stops and eating areas, so you're encouraged to brown bag it and have an outdoor picnic. Making tour arrangements need to be done in advance because of the boat coordination and group fees. There is a Sunday 'family tour' usually on the third Sunday of each month, where the cost is only a suggested donation of $6 a person.
Above are two YouTube videos less than 3 minutes each. The first shows overhead views of the island. The second video is a underwater view of the island's reefs and marine wildlife. Because you can't snorkel or dive on the island, this video is a nice experience. Hope you enjoy seeing Coconut Island.