Adventure brief
2 Tank Shore Dive – Sea Turtle Cove
Dive into Hilo’s unique brackish waters with Hilo Ocean Adventures’ two-tank shore dive. Encounter sea turtles, manta rays, and vibrant coral reefs on this guided underwater journey.
Hilo, on Hawai‘i Island’s lush east coast, delivers a dive experience that defies the usual tourist crowds and commercial reefs. At 1717 Kamehameha Ave, Hilo Ocean Adventures offers a two-tank shore dive that plunges you into the brackish, spring-cooled waters hugging this volcanic coastline. The distinct mix of fresh and ocean water here creates a rare underwater environment where vibrant coral thrives alongside an extraordinary cast of marine life.
Set off under the guidance of seasoned local dive masters who know these waters intimately. You’ll quickly spot green sea turtles gliding effortlessly, manta rays slow-dancing through the current, and a kaleidoscope of tropical reef fish darting among coral formations. The cool freshwater influx inhibits coral bleaching, making this dive site a resilient refuge unlike many others in Hawai‘i.
Hilo Ocean Adventures stands out for its strong community focus and environmental stewardship. Their guides are not only expert divers but educators who emphasize sustainable interaction with delicate underwater habitats. This two-tank shore dive lasts around four hours and is perfect for certified divers age 10 and up seeking a relatively relaxed yet immersive dive.
The dive begins a short distance from the company’s base and includes a thorough safety briefing and marine life overview. The shore entry lets you skip boat rides while still providing access to unique ocean ecosystems. The combination of well-maintained gear, small-group attention, and intimate knowledge of the local marine environment makes this a rare find in Hawai‘i’s dive scene.
Whether you aim to swim alongside sea turtles or study the rich coral gardens, Hilo Ocean Adventures’ 2 Tank Shore Dive offers an authentic window into one of the island’s most unique aquatic landscapes. For divers ready to move beyond the typical spots, this East Hawai‘i coast trip delivers adventure with purpose and care.
Adventure tips
Plan your experience.
Curated tips for an optimal adventure.
- 01Arrive Early for Gear Fittingessential
Show up at least 30 minutes early to ensure proper rental gear fitting before your dive.
- 02Bring Reef-Safe Sunscreeninfo
Use reef-safe sunscreen to protect marine life and prevent coral damage before and after your dive.
- 03Stay Hydratedinfo
Hilo’s tropical climate means hydration is key—drink plenty of water before and after diving.
- 04Know Your Certification Levelessential
Certified divers must bring proof; uncertified divers must complete mandatory instruction and medical forms in advance.
Recommended gear
What to bring.
Wetsuit
Provides thermal protection in cooler ocean temperatures especially during winter months.
winterEssentialDive Computer
Helps monitor depth and time underwater to ensure safe diving limits.
EssentialUnderwater Camera
Capture vibrant sea life and coral in this unique brackish environment.
Reef-Safe Sunscreen
Protects skin and the delicate coral ecosystem during surface intervals.
summerEssentialLocal insights
Context for the journey.
Nearby secrets
Freshwater spring seep spots along the shore, Secluded tide pools near Leleiwi Beach Park
Local fauna
Green sea turtles (Honu), Manta rays
Historic heritage
The East Hawai‘i coast near Hilo holds cultural significance for native Hawaiians, with sea turtles considered ‘aumakua (family guardians).
Mindful exploration
The area’s brackish waters help protect coral reefs from bleaching, and local operators like Hilo Ocean Adventures prioritize sustainable diving practices to preserve these habitats.
Photography tips
Capture the moments
- Viewpoints
- Shore entry point at Sea Turtle Cove, Underwater coral ledges near freshwater springs, Boat-accessible reefs nearby for surface shots
- Subjects
- Green sea turtles, Manta rays gliding through water, Coral formations with tropical fish
- Best times
- Morning light, Midday for underwater visibility, Late afternoon for soft surface light
Frequently asked questions
Before you go.
Do I need to be a certified diver for this trip?
Proof of Open Water Diver certification or higher is required for certified divers, while introductory divers must complete training and medical forms prior to the dive.
What marine life can I expect to see?
You’ll likely encounter green sea turtles, manta rays, octopus, tropical reef fish, and diverse coral species.
How long does the two-tank shore dive last?
The full experience, including safety briefing and surface intervals, typically takes around four hours.
Is shore entry difficult for beginners?
The entry is moderate; divers must be able to carry gear unassisted over uneven terrain and swim in open water.
What should I do if I don’t have all my own dive gear?
Hilo Ocean Adventures provides rental equipment, but arriving early for fittings is necessary.
Are there any health restrictions for this dive?
Pregnant individuals, those over 300 lbs, with back problems, or unable to swim unassisted should not participate.