2 Tank Boat Dive - Hilo Horizons

Hilo’s Remote Reef Ridge 2-Tank Boat Dive

About the Dive

Join our expert local dive pros for an unforgettable two-tank boat adventure exploring some of Hilo’s most remote and pristine reef sites. This experience is designed for certified divers with 15 or more logged dives who are ready to venture beyond the bay and discover the wild beauty of East Hawaiʻi’s underwater world.
(If it has been more than two years since your last dive, please contact us to schedule a refresher course before booking.)

Departing from Hilo Harbor, we’ll travel north along the scenic Hamakua Coast to reach dive sites only accessible by boat. Along the way, take in views of cascading waterfalls, Mauna Kea’s slopes, and remnants of historic sugar plantations from the early 1900s. On calm days, spinner dolphins sometimes play in our wake, adding to the magic of the journey.

Below the surface, divers are treated to an incredible display of volcanic terrain—pinnacles, lava shelves, swim-throughs, and coral-covered canyons that showcase the raw beauty of Hawaiʻi’s underwater landscape. The reefs here are alive with vibrant coral, endemic Hawaiian fish species, and the occasional sea turtle gliding through the current.

During the winter months, you may even spot breaching humpback whales in the distance or snow dusting Mauna Kea’s summit—an unforgettable sight from sea level.

What Makes This Dive Special

• Two dives at remote, boat-only sites along the Hamakua Coast
• Spectacular volcanic topography with pinnacles, arches, and lava tubes
• Pristine coral reefs with endemic Hawaiian marine life
• Occasional spinner dolphin encounters along the way
• Scenic coastline views including waterfalls, cliffs, and historic landmarks

What You’ll See

• Vibrant coral gardens and volcanic reef structures
• Hawaiian green sea turtles (honu) cruising near the reef
• Colorful reef fish including butterflyfish, tangs, and Moorish idols
• Octopus, eels, and other fascinating reef creatures
• Stunning coastal vistas both above and below the water

Dive Experience Details

• Includes: Two air tanks, weights, expert divemaster guide, bottled water, and light snacks
• Gear Rentals: Mask, fins, wetsuit, BCD, and regulator available
• Duration: Approximately 4 hours including briefing, travel, setup, and both dives
• Typical Depths: 40 to 80 ft (varies by site and conditions)
• Certification Level: Certified divers with a minimum of 15 logged dives. A refresher is required for divers inactive for 2+ years.
• Water Temperature: 75–80 °F (24–27 °C); a 3 mm wetsuit is recommended
• Group Size: Small, guided groups for safety and a personalized experience

Tour Disclaimer

This tour: is for experienced certified divers only. We do not guarantee sightings of specific marine life such as spinner dolphins or humpback whales.
It is not suitable for guests who are pregnant, over 300 lbs, have back or mobility problems, or cannot swim unassisted in the open ocean.

All tours: leave promptly at the scheduled time. Tours will not be held for late arrivals, and missed tours are not eligible for refund. Guests requiring rental gear must arrive early enough for fitting and preparation before departure. Wildlife sightings are not guaranteed.

Certified Divers: must present proof of Open Water Diver or higher certification upon check-in.

• Must be able to converse and understand detailed instruction in English
• Must be able to carry 50 lbs of equipment unassisted
• Must complete and submit the PADI/NAUI medical questionnaire 72 hours before the excursion (provided after booking). Guests with heart, lung, or other major medical conditions should contact the shop for clarification before booking.
• Refunds will not be issued for late medical submissions or inability to complete the dive

All Divers: must wait at least 18 hours before ascending to an altitude above 2,500 ft after a two-tank dive.