Diving and Snorkelling in Hikkaduwa: Reef, Wrecks, and Turtles

Diving and snorkelling tours at Hikkaduwa — including guided reef dives, PADI courses, and turtle spotting trips — are bookable through local operators in advance.

Hikkaduwa has been the main diving destination on Sri Lanka’s southwest coast since the 1970s. The draw is accessibility: the reef starts 50m from the beach, the wrecks sit in depths suited to recreational divers, and the sea turtle population is large enough that encounters are reliably close to guaranteed between November and April. The dive schools on the main beach road are concentrated and competitive, making it easy to shop around.

Snorkelling: Hikkaduwa Coral Reef

The Hikkaduwa Coral Sanctuary is one of the most accessible snorkelling sites in Sri Lanka. The reef runs parallel to the main beach, 50–200m offshore, at 2–5m depth — close enough that you can swim out from the beach without a boat. The reef was declared a marine sanctuary in 1988, covering approximately 2 hectares of shallow coral reef.

Best Snorkelling Spots

Hikkaduwa Beach Reef (main reef): The primary snorkelling area sits directly in front of the Coral Sanctuary markers, accessible by wading from the beach. The reef starts at waist depth and extends out to about 5m. This is where most turtle encounters happen and where the densest fish populations are found. Enter the water near the marked area between the Hikkaduwa Beach Hotel and the cluster of dive shops — the reef is healthiest in this central section.

Coral Sanctuary Southern Section: The southern end of the protected reef, toward Thiranagama, has less boat traffic and fewer snorkellers. The coral here includes table corals and brain corals with good fish diversity — sergeant majors, butterflyfish, parrotfish, and blue-ringed angelfish. This section is slightly deeper (3–5m) and better suited to confident swimmers.

North Reef (toward Narigama): The reef thins out toward the north but the sandy patches between coral heads are where turtles rest and feed. If you are specifically looking for turtle encounters rather than coral viewing, this section can be productive.

What You Will See

The reef supports a range of marine life despite the bleaching damage:

• Green sea turtles: Four or more resident green sea turtles (Chelonia mydas) live on the reef year-round. Encounters are close to guaranteed during November to April when conditions are calm. The turtles are accustomed to snorkellers and often approach on their own — stay at the surface, let them come to you, and do not touch or block their path to the surface for breathing.
• Reef fish: Parrotfish, pufferfish, blue-ringed angelfish, butterflyfish, sergeant majors, Moorish idols, and damselfish are common. Lionfish are present on the deeper sections.
• Coral types: Surviving coral includes branching staghorn coral, massive brain corals, plate corals, and soft corals. Recovery since the 2016 bleaching event is visible in many sections, with new growth covering previously bare substrate.
• Other marine life: Moray eels in crevices, sea cucumbers on the sandy bottom, and occasional reef squid in the water column.

Snorkelling Equipment and Costs

Snorkelling from the beach is free — no entry fee for the Coral Sanctuary. Equipment options as of 2026:

Item	Approximate cost
Mask and snorkel hire (beach operators)	LKR 300–500 per session
Full set (mask, snorkel, fins)	LKR 500–1,000 per session
Glass-bottom boat tour (30 minutes)	LKR 500–1,000 per person
Guided snorkel tour with equipment	LKR 1,500–2,500 per person
Buying a basic mask and snorkel set	LKR 2,000–4,000 at beach shops

Beach operators along the main road rent equipment from morning until late afternoon. Check the seal on the mask before accepting — older rental masks often leak. If you plan to snorkel multiple days, buying a cheap set from one of the beach shops is better value.

Glass-Bottom Boat Alternative

For non-swimmers or anyone who prefers to stay dry, glass-bottom boats operate from the beach throughout the day during season. A 30-minute tour costs LKR 500–1,000 per person and covers the main reef sections including the turtle resting areas. The boats are flat-bottomed fibreglass vessels with viewing panels — basic but functional. Negotiate the price before boarding and agree on the duration. The boats also stop over sections of the reef where you can get into the water if you change your mind.

Coral Reef Conservation

The Hikkaduwa reef has been under pressure for decades. The 1998 El Nino bleaching event damaged an estimated 70% of the reef, and the 2016 bleaching caused further losses. Recovery is happening but the reef remains fragile.

When snorkelling:

• Do not stand on coral, even in shallow sections — coral is a living organism and breaks under body weight
• Do not touch, collect, or break off coral pieces
• Avoid kicking up sand near coral heads — sediment smothers coral polyps
• Do not feed the fish — this disrupts natural feeding behaviour and attracts aggressive species
• Wear a rash guard rather than sunscreen where possible — chemical sunscreen ingredients (oxybenzone, octinoxate) damage coral tissue

Best conditions: November through April, when the northeast monsoon brings calm, clear water and visibility of 5–12m. May through October brings the southwest monsoon with rougher surf, reduced visibility (sometimes below 2m), and higher risk for snorkellers. Peak season for both snorkelling and diving is November to March.

Diving: Sites and Conditions

Hikkaduwa Coral Garden

The main recreational dive site — a section of the reef at 6–10m depth, suitable for all certification levels and for beginner divers on Discover Scuba sessions. Fish life is good: dense schools of sergeant majors, snappers, and pufferfish among the coral heads. Turtle encounters are common on this site.

The site is sheltered and has minimal current, making it a reliable first dive for anyone new to Sri Lanka’s conditions. Visibility averages 8–12m in season.

Earl of Shaftesbury

A 19th-century British steam cargo vessel lying at 18m depth, 2km offshore. The wreck is largely intact — the hull is recognisable and penetration diving is possible in the cargo hold sections. The wreck is covered in soft corals and home to lionfish, grouper, and sea fans. Recommended for: divers with open water certification and some wreck experience; penetration sections for advanced divers. A dive with guide from a local school takes approximately 45 minutes.

Conch Wreck

A smaller vessel at 15m, closer to shore than the Earl of Shaftesbury. Good for intermediate divers. Coral encrustation is significant — the wreck has been down long enough that it functions more as an artificial reef than a recognisable shipwreck. Lionfish are reliably present.

Kirinda Wreck

Deeper than the other Hikkaduwa wrecks — only suitable for advanced divers. Check with individual dive schools for current depth and access conditions.

PADI Courses and Dive Schools

Dive schools are concentrated along the 2km beach road between Hikkaduwa junction and Narigama. Most offer the full PADI recreational curriculum from beginner to divemaster level.

Discover Scuba Diving (DSD): Introduction session for non-certified divers — brief surface briefing followed by a shallow guided dive to 6–8m on the coral garden. Cost: approximately $50–60 including equipment. No prior experience required.

PADI Open Water Course: The entry-level certification for independent diving worldwide. Completed over 3–4 days, covering two confined water sessions (swimming pool or sheltered beach) and four open water dives. Cost: approximately $300–350 at Hikkaduwa schools. The certification is internationally recognised and valid for life.

PADI Advanced Open Water: 2-day course adding five speciality dives (typically navigation, deep, peak performance buoyancy, and two electives). Cost: $200–250. Builds on the skills needed for wreck diving.

Equipment check: Before committing to a dive with a school, check the condition of BCD, regulators, and wetsuits. Standards vary between operations. Reputable schools should have maintained equipment with recent service records visible on request.

Turtle Hatcheries

Several private turtle hatcheries operate along the Hikkaduwa beach road. These collect freshly laid sea turtle eggs from nesting beaches and incubate them in protected compounds to shield them from poaching and predation. Entry costs $5–10 and visitors see hatchlings at various stages of development.

The hatchery model has limitations — hatchlings kept in small tanks for extended periods before release can have reduced survival rates, and some facilities hold adult turtles, which is ethically questionable. If you visit, look for operations that release hatchlings promptly (within days of hatching) and do not keep adult animals on permanent display.

Witnessing a release — hatchlings carried to the shoreline after dark and walked into the breaking waves — is a genuine experience. Ask your guesthouse or dive school which facility practices the most responsible release procedures.

Practical Information

• Best season for diving and snorkelling: November–April
• Avoid: May–October (southwest monsoon; rough water, low visibility)
• Snorkelling from beach: Free; LKR 500–1,000 for a guided boat ride to the reef
• Dive school strip: Hikkaduwa main beach road between the junction and Narigama
• Discover Scuba: ~$50 including equipment
• PADI Open Water: ~$300–350
• Wreck dive with guide: ~$35–50
• Getting there: Hikkaduwa is on the Colombo–Galle coastal road; trains from Colombo (2.5 hrs) and Galle (30 min) stop at Hikkaduwa station

More in Hikkaduwa

• Back to Hikkaduwa Guide
• Where to Eat in Hikkaduwa
• Day Trips in Hikkaduwa
• Things to Do in Hikkaduwa
• Where to Stay in Hikkaduwa