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Step into Hawaii’s volcanic black sand beach lagoons with Hilo Ocean Adventures. Swim alongside sea turtles and vibrant reef life on this small-group, guided snorkel tour ideal for all skill levels.
Step into Hawaii’s volcanic black sand beach lagoons with Hilo Ocean Adventures. Swim alongside sea turtles and vibrant reef life on this small-group, guided snorkel tour ideal for all skill levels.
Book with Hilo Ocean Adventures
Verified experiences and guided adventures in the surrounding area.
Operated by Hilo Ocean Adventures · Hilo, Hawaii
On Hawaii's Big Island, the town of Hilo anchors the island’s lush eastern shore, known for a rare blend of volcanic landscapes and vibrant marine habitats. Just off 1717 Kamehameha Ave, Hilo Ocean Adventures offers a carefully curated 3-hour guided snorkel tour along one of the island’s most striking natural features: a volcanic black sand beach that meets clear, sheltered lagoon waters. This isn’t your typical boat-based snorkeling trip; guests walk directly into handpicked snorkeling spots — Richardsons and Carl Smith Beach Parks — where volcanic activity hundreds of years ago shaped the terrain, leaving behind islands of glassy black sand and rich, coral-lined reefs.
What sets this experience apart is the chance to swim alongside hawksbill and green sea turtles in their local hangouts. These creatures, often endangered elsewhere, thrive here thanks to the preserved ecosystems surrounding Hilo Bay. The reefs are alive with neon-colored fish, curious eels, and the occasional graceful manta ray gliding beneath the surface. Guided by knowledgeable local experts, small groups receive detailed briefings on geology, marine biology, and conservation, making the adventure as educational as it is exhilarating.
Safety and comfort are front and center, welcoming snorkelers of all ages, including newcomers. This hands-on approach gives visitors a deep connection to Hawaii’s natural heritage without overwhelming crowds or rushed schedules. After snorkeling, the tour includes island-style snacks and fresh juices, perfect for resetting before returning to shore.
Hilo Ocean Adventures acts as a gateway to the Big Island’s less-commercialized underwater world, providing responsible, immersive marine encounters that respect both visitor experience and environmental sustainability. For anyone seeking a uniquely local lens on Hawaii’s ocean life, this trip offers a rare, intimate adventure under the Pacific sun.
easy.
3 hours.
Participants should be comfortable swimming in open water and able to walk short distances over sand and rocks.
No. Guides provide instruction and support, making this trip suitable for beginners and children 8 years and older.
Tours depart from 1717 Kamehameha Ave, Hilo, HI 96720.
Yes, children aged 8 and above can participate, but must be accompanied by an adult.
Expect to see green and hawksbill sea turtles, colorful reef fish, eels, and sometimes manta rays.
Tours will be canceled or rescheduled in the event of unsafe weather, with full refunds offered.
No. This tour involves walking into the black sand beach and snorkeling directly from shore.
The black sand beaches formed from volcanic lava flows that cooled rapidly along the coastline, sculpting the unique terrain visitors see today.
Hilo Ocean Adventures promotes reef-safe practices and educates visitors on protecting turtle habitats and coral health to support the fragile marine ecosystem.
Hilo Ocean Adventures is a Hilo, Hawaii-based ocean activity operator offering a diverse selection of guided and rental experiences designed for visitors and locals. Trips include private big game fishing charters in Hilo Bay with a professional crew focusing on mahi mahi and ahi tuna, kayak rentals and guided paddles on the Wailoa River and Hilo Bay, surfboard and boogie board rentals, one-tank boat dives to explore tropical reefs, and cultural and scenic cruises such as the Cliffs of Hawai’i Onomea Waterfall Cruise. Seasonal event cruises include front-row 4th of July fireworks cruises and a festive New Year’s Eve cruise from Wailoa Boat Harbor. Kayak options range from self-guided three-hour rentals to 2-hour guided routes like the beginner-friendly Wailoa River paddle to the King Kamehameha Statue, the Hilo Bay and Coconut Island guided tour led by a knowledgeable local guide (limited to six guests), and the Myths & Legends Waterfall Adventure that covers roughly 2.5 miles and highlights Wailuku River waterfalls. Safety and guest comfort are emphasized with complimentary life vests and maps for kayak rentals, snacks, drinks provided on select charters, and certified crews or dive professionals on boat trips. Fishing charters note sustainable practices to minimize local impact. Clear departure points near Wailoa Boat Harbor and a focus on local history, marine life, and experienced guides make Hilo Ocean Adventures a trusted provider of ocean experiences in Hilo.
Book with Hilo Ocean Adventures