Haw. Code R. § 10-4-37
The department shall post permit requirements in the applicable district office. The department shall attach a copy of permit requirements to approved permits. Park use permits are required for:
The department may require security, traffic control, portable toilets, extra trash receptacles, lifeguards, insurance, security deposits or any other items that the department., in its sole discretion, may deem necessary, given the size and complexity of the event for which the permit is issued. The department shall determine the maximum size for any event and the maximum length of stay for overnight camping, and shall post those limits in the district offices. Anyone required to have a permit shall have the appropriate permit and identification at the park at all times and shall, upon request, show those items to law enforcement officers and other authorized representatives. Anyone without a required permit may be considered a trespasser and may be subject to prosecution.
Haw. Code R. § 10-4-37