Papua New Guinea vs Tonga — Dive Destination Comparison
Papua New Guinea (Papua New Guinea) scores 73.1/100 vs Tonga's 65.7/100 in OkToDive's 12-category rating. Choose Papua New Guinea for muck diving with 9–30m visibility. Choose Tonga for whale encounters diving at ~$160/dive.
Last updated: 2026-07-22
Side-by-side comparison
| Metric | Papua New Guinea | Tonga |
|---|---|---|
| OkToDive Score | 73.1/100 | 65.7/100 |
| Country | Papua New Guinea | Tonga |
| Visibility | 9--30m | 12--30m |
| Water temp | 26--29 C | 24--28 C |
| Max depth | 40m | 30m |
| Current | mild | mild |
| Cost per 2-tank dive | $150 | $160 |
| Budget tier | luxury | luxury |
| Best months | May, June, July | July, August, September |
| Dive types | muck, wreck, reef, wall, night, pelagic | whale encounters, reef, cave, drift |
| Min certification | Open Water | Open Water |
| Key species | mimic octopus, pygmy seahorse, mandarin fish | humpback whale, sea snake, reef shark |
| Google rating | 4.7 (1800 reviews) | 4.8 (1600 reviews) |
Which should you choose?
Choose Papua New Guinea when...
- + Marine life enthusiasts seeking mimic octopus encounters
- + Newly certified divers building confidence
- + Wreck diving enthusiasts
- + Dedicated divers willing to commit to a liveaboard trip
Skip if
- - You don't have Advanced certification
- - You're on a tight budget — avg $150/dive
- - You get seasick or prefer shore-based diving
Choose Tonga when...
- + Marine life enthusiasts seeking humpback whale encounters
- + Newly certified divers building confidence
- + Experienced drift divers comfortable in current
Skip if
- - You're on a tight budget — avg $160/dive
- - You need shore access — this is boat-only
Bottom line
Papua New Guinea wins on overall score (73.1 vs 65.7), but the right choice depends on your priorities. Papua New Guinea is more affordable ($150 vs $160/dive). Tonga has better peak visibility (30m vs 30m).