Maui - Hawaii
Piercy Island, or Motu Kokako to give its full name, is a standout for us in the Bay of Islands, and while the Hole in the Rock gets all the glory, we always make time for Piercy’s Backside. We love the dramatic drop-off, a sheer rock face that plummets way past recreational limits. It’s perfect for those comfortable with deeper dives, maybe some techies looking to stretch their legs. You’re starting on big, rocky boulders, working your way down past ledges around 20 metres. Keep an eye out for schooling sweep and the vibrant pink maomao, they often hang in the current here. Our favourite feature is the arch at 40 metres. Finning through it, you feel the water pressure shift, and it’s a cool place to pause and watch for kingfish cruising by. If you’re lucky, you might even spot a shark in the blue. We’ve had some memorable encounters with short-beaked common dolphins zipping past too. This isn’t a coral garden, it’s a rugged, exposed site, and that’s precisely why we rate it. It’s got that raw New Zealand feel.
- Location
- Hawaii, United States, North America
- Coordinates
- 20.800100, -156.303100
Marine Protected Area: Offshore Islets
Best Time to Dive in Hawaii
The warmest water temperatures in Hawaii occur in September, averaging 29.0°C. The coolest conditions are in March at 25.6°C.
Monthly Water Temperatures
- January: 26.2°C
- February: 25.7°C
- March: 25.6°C
- April: 26.0°C
- May: 26.8°C
- June: 27.6°C
- July: 27.9°C
- August: 28.5°C
- September: 29.0°C
- October: 28.6°C
- November: 27.9°C
- December: 27.2°C
Nearby Dive Sites in Hawaii
- Airplane Canyon - 27m (cave)
- Airport Beach
- Airport Beach (cave)
- Anahola Beach Park
- Aquarium - Hawaii (wreck)
- Aquarium - Hawaii (reef)
- Black Rock - Hawaii (reef)
- Black Rock - Hawaii (reef)
- Cathedral II (reef)
- Cathedrals (cave)
- Corsair Wreck (wreck)
- Edge of the World
- Enenue
- Ewa Pinnacles Reef - 26m (reef)
- Fantasy Reef (reef)
Nearest Dive Centres to Maui
- Aaron's Dive Shop - ["PADI"]
- Affinity Freediving
- Aloha Scuba Diving Company - ["PADI"]
- Aquatic Life Divers - ["PADI"]
- Black Rock Scuba - ["PADI"]
- Blue Wilderness Dive Adventures Corp. - ["PADI"]
Marine Life in Hawaii
Home to 23 recorded species including 17 reef fish, 3 other, 2 sharks & rays, 1 whales & dolphins.
Notable Species
- Swordfish (Xiphias gladius) - Reef Fish
- Tuna (Thunnus alalunga) - Reef Fish
- Bigeye tuna (Thunnus obesus) - Reef Fish
- Dorado (Coryphaena hippurus) - Reef Fish
- Escolar (Lepidocybium flavobrunneum) - Reef Fish
- Allison's Tuna (Thunnus albacares) - Reef Fish
- Barracuda (Acanthocybium solandri) - Reef Fish
- Blue Shark (Prionace glauca) - Sharks & Rays
- Leatherback Sea Turtle (Dermochelys coriacea)
- Remora (Remora remora) - Reef Fish
- Flyingfish (Hirundichthys speculiger) - Reef Fish
- Albacore (Thunnus atlanticus) - Reef Fish
- Blue Flying Fish (Exocoetus volitans) - Reef Fish
- loggerhead turtle (Caretta caretta)
- Stripy (Katsuwonus pelamis) - Reef Fish
- Hawksbill Turtle (Eretmochelys imbricata)
- Fourwing Flyingfish (Hirundichthys affinis) - Reef Fish
- Sperm Whale (Physeter macrocephalus) - Whales & Dolphins
- Atlantic Bluefin Tuna (Thunnus thynnus) - Reef Fish
- Blue Marlin (Makaira nigricans) - Reef Fish
Recommended Packing List for Maui
Based on average water temperature of 27.2°C, currents 9 cm/s.
- Shorty or Rashguard - warm 27°C water needs minimal exposure protection
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories