[4][5] When weather and wave conditions permit crossings from Kauaʻi, Lehua is a noted destination for snorkeling and scuba diving.
The United States Coast Guard maintains Lehua Rock Light (a lighthouse) on Kaunuakalā, at 704 feet (215 m) the highest point of the island.
Native birds like the threatened Newell's Shearwater were likely being restricted from breeding on Lehua Island due to predation by rats.
Smaller, open-nesting seabirds such as terns and noddies were conspicuously absent from Lehua (save small numbers found in sea caves), also a suspected artifact of rat predation.
[8] The official Final Monitoring Report Issued on Lehua Restoration Project found no rodenticide in environmental samples and minimal impact to species other than rats.