Haw. Rev. Stat. § 173A-7: Administration and management.

The board shall, subject to chapter 171, administer, maintain, and manage any land acquired under the provisions of this chapter, may charge such fees for the use of any such land as it considers to be reasonable, and may construct on such land any improvement which it deems to be necessary to carry out the purposes of this chapter. The board may adopt and from time to time amend regulations implementing the provisions of this chapter.