Oasis is a marine site located off Tuticorin, featuring a combination of reef and seagrass habitats. Divers can explore depths ranging from 8 to 18 metres, with an average depth of 13 metres. The site is suitable for beginners due to the mild currents, though conditions vary. The topography consists of reef structures and seagrass beds, which support a variety of reef fish and invertebrates. Access is by boat only. Divers should be cautious of sharp coral throughout the area. Equipment rental and air fills are available at the local dive shop in Tuticorin.

Great Wall is a reef site located 1000 metres off the coast of Tuticorin, India. Accessible only by boat, the site features a reef structure ranging from 10 to 17 metres in depth. Divers can expect mild currents and visibility between 5 and 15 metres. The water temperature remains consistent, fluctuating between 27 and 31 degrees Celsius. The reef supports a variety of marine life typical of the region. Due to the presence of sharp coral and rocks, careful buoyancy control is required. Guided tours are available, and the site is suitable for night diving, which offers a different perspective of the reef environment.

Green Mile is a shallow reef and seagrass site located 500 metres off the coast of Tuticorin, India. With an average depth of 7 metres, ranging between 6 and 8 metres, it provides a comfortable environment for beginner divers. The site features a combination of reef structures and seagrass beds, accessible only by boat. Divers experience mild currents, though visibility is variable and can change significantly between dives. Water temperatures remain between 27 and 31 degrees Celsius throughout the year. Due to the presence of sharp coral and jagged reef surfaces, protective footwear and dive gloves are recommended for safety during boat entries and underwater navigation.

Aqua House Reef in Tuticorin offers a shallow, accessible environment for snorkellers and beginner divers. The reef maintains a consistent depth of 5 metres, located just 20 metres from the shore. Entry is via the shore, and the site experiences mild currents, making it a comfortable location for those new to the water. Water temperatures remain between 27 and 31 degrees Celsius throughout the year. Visibility varies by day, so local guided tours are recommended to identify the best conditions. On-site facilities include parking, showers, a rinse station, and air fills for those participating in discover-dive experiences.