About Agnay Fish Sanctuary
Agnay Fish Sanctuary is nestled in a sheltered bay near the village of Agnay in Romblon, a province celebrated for its rich marine biodiversity. This sanctuary is a highlight for divers seeking untouched sites within the Verde Island Passage, recognized as the 'center of the center of marine biodiversity'. The most striking feature of the Agnay reef is its formation of dome-shaped Acropora corals, creating a unique underwater landscape. The site is suitable for all experience levels, with depths ranging from shallow areas to deeper sections, supporting a diverse array of marine species. While specific seasonality for marine life at Agnay is not detailed, the region generally boasts high biodiversity year-round. Expect to encounter large schools of various fish, and opportunistic sightings of eagle rays and sharks, particularly during the calm morning hours. Diving here offers a serene experience, often without other groups, providing an intimate encounter with the vibrant ecosystem. The consistent warm waters and good visibility typical of Romblon ensure comfortable and rewarding dives.
Highlights
Best Season
The best time to dive Agnay Fish Sanctuary is from November to June, which corresponds to Romblon's dry season. During these months, seas are typically calm, visibility is excellent, and conditions are ideal for exploring the sanctuary's unique reef formations.
Dive site facts: Agnay Fish Sanctuary
- Depth
- 9–18 m
- Current
- Mild
- Visibility
- 20 m
- Water temperature
- 26–30°C
- Entry
- Boat
- Level
- All Levels
- Dive type
- Coral reef, marine sanctuary
- Region / port
- Romblon, Philippines
- Coordinates
- 11.1744° N, 122.0252° E
Conditions & Currents
Currents at Agnay Fish Sanctuary are generally mild due to its location within a sheltered bay, making it accessible for divers of all experience levels. However, as with any marine sanctuary, localized currents can occur, particularly around reef structures where marine life congregates. Visibility is consistently good, often reaching up to 20 meters, allowing for clear views of the abundant fish and coral formations. Water temperatures remain warm throughout the year, typically between 26°C and 30°C. Entry to the site is usually via boat, and while drift diving is less common given the sheltered nature, maintaining good buoyancy control is always essential to protect the delicate Acropora corals.
Marine life & sighting chances
Dive profile & how the dive runs
Dives at Agnay Fish Sanctuary typically begin with a boat entry into the sheltered bay. The descent leads directly to the reef, characterized by its distinctive dome-shaped Acropora corals. Divers then explore along the reef contours, with options for both shallower and slightly deeper profiles, depending on experience and interest. Early morning is often recommended for encounters with schooling fish, eagle rays, and potentially sharks, so the route might prioritize areas where these sightings are more likely. The dive progresses through the vibrant coral gardens, allowing for observation of various reef inhabitants. Turnaround is usually based on air consumption or bottom time, before a gradual ascent back towards shallower sections for a safety stop, often completed over a vibrant coral patch or near the boat.
Underwater photography
Agnay Fish Sanctuary offers excellent opportunities for wide-angle photography, especially to capture the distinctive dome-shaped Acropora coral formations and large fish shoals. A wide-angle lens with external strobes will help illuminate the expansive reef and bring out the natural colors of the corals and schools of fish. For capturing eagle rays or sharks, be ready for fast-moving subjects and consider slightly higher shutter speeds. Buoyancy control is paramount to avoid disturbing the delicate corals, ensuring a stable platform for shots and protecting the ecosystem. Due to the potential for large animal sightings, keep an eye out for dynamic scenes unfolding in the blue.
Combine with nearby dive sites
- The House Reef
The House Reef in Dauin, Negros Oriental, extends directly from the shoreline along a volcanic coast, offering divers convenient shore…
- Lonos Marine Sanctuary
Lonos Marine Sanctuary is a protected dive site situated in a tranquil bay near Tiamban Beach in Romblon, Philippines.
- Bonbon Beach
Bonbon Beach Reef, located near Romblon Town on Romblon Island, has garnered a reputation as a premier macro diving destination within the…
- Bonbon Sea Grass Valley
The Valley of Sharks is an exhilarating dive site located off Moorea, a short ferry ride from Tahiti in French Polynesia.
- Bangug Island
Shark Island, situated off the remote island of Kosrae in Micronesia, stands as an exceptional destination for experienced divers seeking…
Getting there & logistics
Access to Romblon is primarily via ferry from Batangas Port or Lucena Port after flying into Manila, with an overnight or daytime journey. Alternatively, flights are available to Tablas Island, followed by smaller boat transfers to Romblon Island. The sanctuary is typically reached by day boat from dive resorts located on Romblon Island. Dive trips are often part of multi-day packages from local operators, focusing on the island's diverse macro and reef sites. While there are no specific permit fees mentioned for Agnay Sanctuary itself, it is advisable to confirm with your dive operator regarding any local marine park fees that may apply.
Safety & environment
Romblon's relative remoteness means emergency services and medical facilities are limited compared to major urban centers. The nearest recompression chamber would likely be in a larger hub like Cebu or Manila, necessitating a potentially lengthy evacuation for serious dive injuries. Comprehensive dive insurance, including coverage for medical emergencies and evacuation, is therefore highly recommended for all divers. Site-specific hazards at Agnay are minimal due to its sheltered nature, but standard safe diving practices apply. Always dive with a reputable operator, follow your dive guide's instructions, and maintain appropriate depth and no-decompression limits.
Who it suits — and who it doesn't
Suited for
- All levels of divers
- Underwater photographers seeking unique reef structures
- Divers interested in diverse fish life
- Those looking for uncrowded dive experiences
- Divers seeking protected marine areas
Less suited for
- Divers exclusively seeking large pelagic encounters
- Those who prefer strong current drift dives
- Divers looking for wrecks or extreme depths
- Liveaboard-only travelers (day boat access is primary)
FAQ
Agnay Fish Sanctuary FAQ
What makes Agnay Fish Sanctuary unique?
What marine life can I expect to see at Agnay Fish Sanctuary?
Is Agnay Fish Sanctuary suitable for beginner divers?
What is the visibility and water temperature like at Agnay?
How do I get to Agnay Fish Sanctuary?
Why dive Agnay Fish Sanctuary from a liveaboard?
Agnay Fish Sanctuary is one of Philippines's signature dive sites. A liveaboard sleeps you on the water and puts you in the water for three to four guided dives per day, including dawn and night dives that day-boat operators rarely offer. You skip the daily commute back to port and reach quieter, less-crowded sites in the same region on a single trip.
Below are the liveaboards that include Agnay Fish Sanctuary on their Philippines itineraries.
Liveaboards diving Agnay Fish Sanctuary
These liveaboards may visit Agnay Fish Sanctuary on selected itineraries — the exact dive sites depend on departure, weather and conditions.

Infiniti
Philippines

Seadoors
Philippines

Resolute
Philippines

Dolphin
Philippines

Navis 1
Philippines

Philippine Siren
Philippines

Palau Sport
Philippines

Philippines Aggressor
Philippines

Stella Maris Explorer
Philippines

Solitude One
Philippines

Atlantis Adventurer
Philippines

Philippines Aggressor II
Philippines
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