Tumbatu Lagoon - Zanzibar & Pemba

Blue Pyjamas, a quick boat ride from Gizo, is one of those places we often head to when the southeast trades kick up. It’s a well-protected channel, meaning the surface is usually calm and the dive is tranquil, just as the name implies. The reef starts shallow, around 2 meters, perfect for a bit of sun-drenched snorkeling or freediving, then slopes down to about 19 meters for divers. We love poking around the swim-throughs and small caves – they’re not grand caverns, but good fun, and we often spot resting turtles or the occasional bumphead parrotfish cruising by. Visibility averages a comfortable 18 meters, making it a relaxed dive for anyone looking to just enjoy the reef without battling currents.

Location
Zanzibar & Pemba, Tanzania, Indian Ocean & East Africa
Coordinates
-5.821100, 39.234100
Type
reef
Maximum Depth
2-18m

Marine Protected Area: Maziwe Island

Best Time to Dive in Zanzibar & Pemba

The warmest water temperatures in Zanzibar & Pemba occur in January, averaging 28.1°C. The coolest conditions are in December at 28.1°C.

Monthly Water Temperatures

  • January: 28.1°C (air: 27.5°C)
  • February: 28.1°C (air: 27.9°C)
  • March: 28.1°C (air: 27.7°C)
  • April: 28.1°C (air: 26.1°C)
  • May: 28.1°C (air: 26.1°C)
  • June: 28.1°C (air: 25.4°C)
  • July: 28.1°C (air: 24.8°C)
  • August: 28.1°C (air: 24.9°C)
  • September: 28.1°C (air: 25.4°C)
  • October: 28.1°C (air: 26.2°C)
  • November: 28.1°C (air: 26.7°C)
  • December: 28.1°C (air: 27.3°C)

Nearby Dive Sites in Zanzibar & Pemba

Nearest Dive Centres to Tumbatu Lagoon

Marine Life in Zanzibar & Pemba

Home to 331 recorded species including 266 reef fish, 14 sea snails & nudibranchs, 10 seagrass & algae, 8 hard corals, 8 sharks & rays, 7 sea cucumbers.

Notable Species

Recommended Packing List for Tumbatu Lagoon

Based on average water temperature of 28.1°C.

  • Shorty or Rashguard - warm 28°C water needs minimal exposure protection
  • Mask - essential for every dive
  • Fins
  • BCD - buoyancy compensator
  • Regulator - your most safety-critical piece of gear
  • Dive Computer - tracks depth, time, and NDL
  • Surface Marker Buoy (SMB) - essential for boat pickups
  • Dive Torch - useful for crevices and colour at depth
  • Underwater Camera - capture your diving memories

Frequently Asked Questions

What is the typical diving depth at Tumbatu Lagoon dive sites?
The typical diving depth at Tumbatu Lagoon ranges from an average of 2 to 18 meters, with a maximum recorded depth of 16 meters. This makes it a versatile site, accommodating divers interested in both shallower reef exploration and slightly deeper dives.
What kind of marine life and corals can I expect to see when diving in Tumbatu Lagoon?
When diving in Tumbatu Lagoon, you can expect to encounter a vibrant array of marine life and some of the most healthy and colorful hard corals in Zanzibar. Divers frequently spot turtles, cuttlefish, rays, moray eels, scorpionfish, lionfish, butterflyfish, mantas, peacock shrimps, and sea stars. For more information on marine species, visit our wildlife database.
How difficult are the dive sites at Tumbatu Lagoon, and are they suitable for beginner divers?
The dive sites at Tumbatu Lagoon are classified as intermediate difficulty. While the average depth ranges from 2-18m, the intermediate rating suggests that some experience beyond basic open water certification might be beneficial due to potential currents or specific dive conditions. Beginner divers should consult with local dive operators to assess suitability for their skill level.
What is the best time of year to dive at Tumbatu Lagoon for optimal conditions and marine life sightings?
The provided data does not specify the best time of year to dive at Tumbatu Lagoon for optimal conditions or marine life sightings. For general guidance on seasonal diving conditions in the region, we recommend checking our When to Dive resource or consulting with local dive centers in Zanzibar & Pemba.
What scuba diving certifications are required to dive at Tumbatu Lagoon?
The provided data does not specify the exact scuba diving certifications required to dive at Tumbatu Lagoon. Given its intermediate difficulty, an Open Water Diver certification is typically a minimum, but advanced certifications might be recommended or required by local operators for certain dive profiles. It's always best to confirm with your chosen dive center in Zanzibar & Pemba.
What are the typical currents and visibility conditions like for diving in Tumbatu Lagoon?
For diving in Tumbatu Lagoon, the average visibility is typically around 11 meters, offering clear views of the vibrant reef. While specific current conditions are not detailed in the provided data, the site's intermediate difficulty rating suggests that currents could be a factor at times. Divers should always check with their dive guide for real-time conditions.