There is no mention of available water in the trail brochure and I have not been on this trail myself.
Overnight parking is available at the dining lodge parking lot.
This trail is relatively new and is not mentioned on the State Park Website for Washington State Park. The trail begins from the northwest side of the dining lodge parking lot and is signed with orange arrows in a counter-clockwise direction. There is one backpack camp that groups of 7 or more are required to use. Smaller groups may camp anyplace as long as they stay 100 feet from the trail and 200 feet from other major public use areas. You can call or write the park office to have a trail map sent to you.