Open/Close: The island generally doesn't open until an hour or two after the rest of the park and closes around dusk; a sign giving the exact last time is posted near the raft loading platform. The island is also closed in inclement weather.
Wait Times: It is rare to have to wait for more than one raft in order to get to and from the island. Once on the island everything is self-guided and rarely so crowded that you'd have to wait for anything.
Length of Ride: Self-guided, but at least 10 minutes if you go over to the island and immediately return (a bit longer if only one raft is being used).
Single Rider: No
Queue Description: None, just a little dock on the edge of the river.
Health Restriction: Should be none, though some portions of the island should be avoided for some people (the caves if claustrophobic, the suspension bridge of prone to vertigo.
Ride Access: The rafts to and from the island are wheelchair accessible (though new rafts being designed will require a ramp to get onto them). Most of the trails on the island are accessible as well, though uneven and surfaced with dirt. Most of the activities on the island (tree houses, caves, etc.) are not accessible and would require leaving a chair.
Wheelchair Transfer: Not required, though necessary to experience some areas of the island and activates (such as caves and tree houses). Guest would be required to walk on their own through these areas.
Service Animals: Yes
Audio: Sound does not play a significant role in this attraction.
Weight and Size Issues: In general this won't be an issue though some of the areas of the island are more meant for children and have tight fits for large or tall guests.