Zanzibar / Mafia Island vs Sodwana Bay — Dive Destination Comparison
Zanzibar / Mafia Island (Tanzania) scores 68.7/100 vs Sodwana Bay's 68.4/100 in OkToDive's 12-category rating. Choose Zanzibar / Mafia Island for reef diving with 9–24m visibility. Choose Sodwana Bay for reef diving at ~$65/dive.
Last updated: 2026-07-22
Side-by-side comparison
| Metric | Zanzibar / Mafia Island | Sodwana Bay |
|---|---|---|
| OkToDive Score | 68.7/100 | 68.4/100 |
| Country | Tanzania | South Africa |
| Visibility | 9--24m | 9--30m |
| Water temp | 24--29 C | 20--27 C |
| Max depth | 30m | 104m |
| Current | mild | moderate |
| Cost per 2-tank dive | $80 | $65 |
| Budget tier | mid range | budget |
| Best months | October, November, December | November, December, January |
| Dive types | reef, whale shark, drift, night | reef, deep, shark, pelagic |
| Min certification | Open Water | Open Water |
| Key species | whale shark, green turtle, humpback whale | ragged-tooth shark, coelacanth, loggerhead turtle |
| Google rating | 4.3 (2200 reviews) | 4.4 (1800 reviews) |
Which should you choose?
Choose Zanzibar / Mafia Island when...
- + Newly certified divers building confidence
- + Experienced drift divers comfortable in current
- + Couples where one partner doesn't dive
Skip if
- - You prefer uncrowded sites and this has 35+ named spots drawing traffic
- - You need shore access — this is boat-only
Choose Sodwana Bay when...
- + Budget-conscious divers — avg $65/dive
- + Anyone visiting Africa for the first time
- + Groups seeking 30+ named dive sites in one area
Skip if
- - You don't have Advanced certification
- - You need shore access — this is boat-only
Bottom line
Zanzibar / Mafia Island wins on overall score (68.7 vs 68.4), but the right choice depends on your priorities. Sodwana Bay is more affordable ($65 vs $80/dive). Sodwana Bay has better peak visibility (30m vs 24m).