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Quick answers
Which local rescue or training agency should I check first?
Use the local lens: coastguard/federation norms and the shop briefing for that bay — not a blog visibility claim.
What is Act 104?
A 2018 Hawaii statute targeting sunscreen ingredients such as oxybenzone and octinoxate. Long sleeves work regardless of the chemistry debate.
Molokini?
A crescent tuff cone off Maui. The inner crater is the classic boat-snorkel; the back wall is a current dive. Morning trips are the culture.
Kealakekua Bay?
A marine life conservation district on Hawaii Island, reached by boat or a steep trail, famous for clear water and a monument shore. Theft and heat on the trail are real.
Kona manta nights?
A sit-dive or snorkel around lights that attract plankton, then mantas. Codes limit touching and light-in-eyes. See night-diving.
Is Two Step a real name?
Yes: a lava-entry snorkel at Honaunau near the Place of Refuge, popular and sharp on the ankles.
Harm clusters on current at points and crater backs, winter surf on the wrong shore, lava cuts, and boat props in bays. This is not medical advice.
A red flag and a closed Hanauma day are safety decisions.
Hazards
- Rip and current — Bays that look like pools.
- Winter swell on north and west shores — A surf hazard in snorkel water.
- Lava cuts and urchins — Entries.
- Boat props — Molokini, Waikiki, Kealakekua.
- Heat on the Ka'awaloa trail — Kealakekua by land.
- Manta-night scrums — Kicks to faces and animals.
Rules
- Flags and tickets — The day's law.
- Distance from turtles and mantas — DLNR and operator codes.
- No standing on coral — Hanauma's original sermon.
- Buddy or a beach watcher — Shore entries.
- Night: the operator's light rules — Or skip the night.
Red flags
- A full Hanauma parking lot and no reservation — Do not invent a side entrance.
- Whitecaps in a 'beginner' bay — Stay out.
- A manta operator who encourages touching — Walk.
- Blood from lava and a long swim left — Exit, clinic.
First response
- Signal the tower — The Hawaiian safety system on many beaches.
- Cuts — Clean water, then clinical care; coral and lava infect.
- Not medical advice — Stings and drowning are emergency-service problems.
Hawaii safety is a flag, a ticket and a lava step. The back wall can wait.