Robs Bottom - Bazaruto Archipelago

Okay, let's talk about the SY Fiji Siren mooring. Most people hear "mooring line" and think a quick safety stop, but this spot? It's our pick for something a bit different. Forget your usual reef dive; this is proper muck diving, Taveuni style, with a maximum depth of 22m. We love dropping onto this heavy-duty line, watching it disappear into the thick, dark grey mud below. Visibility averages 16m here, and on a good day, it's like diving in a soupy, silty dream. It's flat down there, absolutely no visual references, which makes it brilliant for testing navigation skills – we often bring students here for compass work, making them really trust their instruments. But don't think it's just a blank canvas. The mooring rope itself is a mini-ecosystem, home to all sorts of small macro life, perfect for slow exploration. Keep an eye out for Spinysnout Pipefish tucked into crevices or a Nocturn Goby darting across the mud. Out in the murk, you might just get lucky and spot wahoo or batfish cruising by, occasionally even a big grouper or a ray near the seabed, accompanied by schools of baitfish. It’s an unusual dive, best suited for those who appreciate the subtle beauty of the small stuff and don’t mind a bit of silt.

Location: Bazaruto Archipelago, Mozambique, Indian Ocean & East Africa
Coordinates: -23.966200, 35.528800
Type: muck

Best Time to Dive in Bazaruto Archipelago

The warmest water temperatures in Bazaruto Archipelago occur in January, averaging 28.3°C. The coolest conditions are in August at 23.3°C.

Monthly Water Temperatures

January: 28.3°C
February: 28.3°C
March: 27.6°C
April: 27.0°C
May: 25.9°C
June: 24.8°C
July: 23.8°C
August: 23.3°C
September: 23.6°C
October: 24.5°C
November: 25.8°C
December: 27.4°C

Nearest Dive Centres to Robs Bottom

Marine Life in Bazaruto Archipelago

Home to 99 recorded species including 70 reef fish, 14 sharks & rays, 4 other, 3 sea cucumbers, 3 hard corals, 2 whales & dolphins.

Notable Species

Whale Shark (Rhincodon typus) - Sharks & Rays
Narrow-barred Spanish mackerel (Scomberomorus commerson) - Reef Fish
Soldier (Cheimerius nufar) - Reef Fish
Leatherback Sea Turtle (Dermochelys coriacea)
loggerhead turtle (Caretta caretta)
Allison's Tuna (Thunnus albacares) - Reef Fish
Gulf torpedo (Torpedo sinuspersici) - Sharks & Rays
Halfmoon triggerfish (Sufflamen chrysopterum) - Reef Fish
Day Sarpon (Alepisaurus ferox) - Reef Fish
Blackspot Surgeonfish (Acanthurus nigrofuscus) - Reef Fish
Kihikihi (Zanclus cornutus) - Reef Fish
Spottail Coris (Coris caudimacula) - Reef Fish
Sunburst Butterflyfish (Chaetodon kleinii) - Reef Fish
Goldbar wrasse (Thalassoma hebraicum) - Reef Fish
Savigny's Brittle Star (Ophiactis savignyi)
Rainbow wrasse (Halichoeres iridis) - Reef Fish
Banded Toby (Canthigaster valentini) - Reef Fish
Blue and Gold Fusilier (Caesio caerulaurea) - Reef Fish
Southern Right Whale (Eubalaena australis) - Whales & Dolphins
Palani (Acanthurus dussumieri) - Reef Fish

Recommended Packing List for Robs Bottom

Based on average water temperature of 25.9°C, currents 35 cm/s.

Shorty or Rashguard - warm 26°C water needs minimal exposure protection
Mask - essential for every dive
Fins (stiff blade recommended for strong currents)
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