

Best for advanced divers, 14-70m, boat entry, strong current.
Big Wall is a vertical reef structure located off Zanzibar West and Stone Town, Tanzania. The site features a dramatic drop-off starting at 14 metres and extending to 70 metres, making it suitable only for advanced divers. Divers experience strong, unpredictable currents that facilitate drift dives along the wall. Visibility ranges from 15 to 30 metres, allowing for clear views of the deep terrain. Access is strictly by boat, and the site is not suitable for snorkelling. Divers must manage buoyancy carefully due to the depth and current, and should be aware of the presence of sharks in the area.
-5.80150, 39.41826
Verify current conditions with your operator on the day, as strong and unpredictable flow can make or break a dive at this site. Confirm your boat crew is briefed on drift pickup before you enter the water.
Access info coming soon
Recorded at this site
Depth
14-70m
Visibility
15-30m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
26-29°C
Current
Strong
Best Time
Jan, Feb, Mar, Oct, Nov, Dec
No, this site is intended for advanced divers only due to the significant depth, strong currents, and open-water exposure.
The wall begins at approximately 14 metres and drops to 70 metres.
Big Wall is a boat-access site; a boat is required to reach the location and manage the drift.
No, this site is not suitable for snorkelling as it is a deep wall dive.
Hazards include significant depth, strong and unpredictable currents, and the presence of sharks.
Diving at Big Wall in Matemwe requires the following certifications: Advanced. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at Big Wall in Matemwe. Water temperatures range from 26°C to 29°C.
The best months to visit Big Wall in Matemwe are January, February, March, October, November, and December. Conditions outside these months can still be good but are less predictable.
Big Wall in Matemwe can have strong currents. Advanced experience with drift diving and current navigation is recommended.
Visibility at Big Wall in Matemwe typically ranges from 15 metres to 30 metres. Conditions vary with weather, tides, and seasons.