The Ultimate Molokini Crater Snorkeling Guide
Molokini Crater is widely considered the crown jewel of Hawaiian snorkeling. This partially
submerged volcanic crescent acts as a natural breakwater, protecting its inner cove from swells and
currents, which results in legendary underwater visibility of up to 150 feet.
Why Snorkel Here?
- Exceptional Clarity: Average visibility is 100-150 feet.
- Diversity: Over 250 species of fish and 38 species of coral.
- Protected Waters: The crater's walls block the wind and waves.
Best Time for Snorkeling
Regardless of the season, morning tours consistently provide the best conditions. As the
morning progresses, trade winds typically build, which can make the water choppy and reduce visibility
inside the crater. Most tours depart between 6:00 AM and 8:00 AM to ensure snorkelers experience the calmest
surface conditions.
Snorkeling Etiquette & Rules
Molokini is a protected State Marine Life Conservation District and Seabird Sanctuary. Strict regulations are
in place to preserve this fragile ecosystem:
- Never Land: It is strictly prohibited to walk on the crater's edge or land any vessel.
- Look, Don't Touch: To protect both you and the marine life, never touch coral or
animals.
- Reef-Safe Sunscreen: Hawaii law requires the use of mineral-based sunscreens (Zinc
Oxide or Titanium Dioxide).
- Distance Requirements: Maintain at least 10 feet from sea turtles and 100 yards from
humpback whales.
Essential Tips for Visitors
- Book in Advance: Tours often sell out 1-2 weeks ahead, especially in peak summer
months.
- Equipment: Most tour operators provide fins, masks, and snorkels, but a rashguard or
wetsuit top is recommended for sun protection and slight buoyancy.
- Seasickness: If you are prone to motion sickness, consider taking preventative measures
before the boat departs Maalaea or Lahaina.