Iao Valley State Monument will close April 27–June 26 for pedestrian bridge upgrades, temporarily blocking access to the Iao Needle during the spring travel season.

Researchers filmed honu eating invasive Chondria tumulosa at Midway Atoll; the finding suggests turtles could trim outbreaks but might also carry fragments between atolls.

Honolulu Ocean Safety posted warnings after an 'aggressive' shark was spotted near Diamond Head at about 7:17 a.m.; lifeguards urged people to avoid the water.

Lifeguards posted warning signs at Electric Beach after a roughly 10-foot shark was seen offshore. Officials said the animal was non‑aggressive and no injuries were reported.

The National Park Service will run limited tours of Honouliuli, Oahu’s hidden WWII internment site, this summer — a managed opening of the 123‑acre gulch.

State biologists found invasive Avrainvillea erecta along Kauai's south shore, with some patches topping 80% cover.

A foil surfer off Oahu filmed a hammerhead sliding beneath his board in January; state officials say such encounters are rare and usually nonfatal.

A Waialua woman says a bag of Sta‑Green soil bought at Waipahu Lowe's contained about 60 coconut rhinoceros beetle larvae. Officials urge shoppers to inspect bagged soil and report suspected pests.

State agriculture officials warn Merrie Monarch visitors not to move ʻōhiʻa off Hawaiʻi Island as rapid ʻōhiʻa death continues; airport checks and hoʻihoʻi baskets will be available.

County of Kaua‘i is advancing skateparks in Hanapēpē and Nāwiliwili, a $12.2M Vidinha Stadium rebuild and islandwide court and comfort‑station upgrades.

HPU’s Bounty Project has removed more than 185,000 pounds of derelict fishing gear by paying commercial fishers to haul ghost nets before they reach reefs. The program pairs researchers, fishers and state agencies.

Polihale and Hāʻena State Parks, plus the Kalalau Trail and shuttle, are closed as a Kona storm brings flood and wind risks to Kauaʻi. Officials suspended camping permits.

Shark depredation now affects about one in four licensed fishing trips in Hawaiʻi, costing small-boat fishers money as scientists test repellents and councils weigh a response.