Rock-boring Urchin

1. Water WalkSanur, Bali, IndonesiaBeginner-friendlyBest Apr–Nov3 mm
2. Brothers IslandsRed Sea, Egypt20 m–40 mAdvanced+Best Mar–Oct3 mm
3. Coral GardensDibba Al-Fujairah, Fujairah, United Arab EmiratesReef26 mIntermediate+Best Apr–Nov3 mm
4. HinuganBuruanga, Panay, PhilippinesReef · Wall32 mAdvanced+Best Jan–Jun3 mm
5. TeonaiTuamotu Archipelago, French PolynesiaBoat21 mIntermediate+Good year-round3 mm
6. Ningaloo Whale Shark SnorkelWestern Australia, Australia0 m–10 mBeginner-friendlyBest Apr–Aug3 mm
7. Blue CathedralGeneral Luna, Mindanao, PhilippinesCavern40 mAdvanced+Best Feb–Sep3 mm
8. Uepi PointWestern, Solomon IslandsBoat24 mIntermediate+Good year-round3 mm
9. Paraoir SurBacnotan, Luzon, PhilippinesReef30 mIntermediate+Best Jan–Apr3 mm
10. Paraoir NorteBacnotan, Luzon, PhilippinesReef25 mIntermediate+Best Jan–Apr3 mm
11. PoitoTuamotu Archipelago, French PolynesiaBoat21 mIntermediate+Good year-round3 mm
12. Rangiroa Avatoru PassTuamotu Archipelago, French Polynesia10 m–35 mIntermediate+Good year-round3 mm
13. XiaoliuqiuDonggang, TaiwanShore · Drift · Reef · WreckBest Mar–May3 mm
14. Coral GardenDhihdhoo, MaldivesPinnacle · Reef13 mBeginner-friendlyBest Jan–Apr3 mm
15. AquariumKijini, Unguja North, TanzaniaBoat19 mIntermediate+Best May–Mar3 mm
16. Captain MuddyNungwi, Unguja North, TanzaniaBeginner-friendlyBest May–Mar3 mm
17. Outhouse BeachApra Harbor, GuamBeginner-friendlyBest Dec–Jun3 mm
18. Mamsa pointZamboanguita, Negros Oriental, PhilippinesBeginner-friendlyBest Jan–Oct3 mm
19. USS Utah (BB-31)Ford Island, Hawaii, United StatesWreckGood year-round3 mm
20. Djabeda WreckCap Malheureux, MauritiusDrift · Reef · WreckBest Nov–Apr3 mm
21. Carpenter ReefCap Malheureux, MauritiusDrift · ReefBest Nov–Apr3 mm
22. San JoseSamal, Mindanao, Philippines15 mBeginner-friendlyBest Dec–Oct3 mm
23. SunriseTabalong, Bohol, PhilippinesReef · WallBest Nov–May3 mm
24. MarirssaSamal, Mindanao, Philippines40 mAdvanced+Best Dec–Oct3 mm

Sources: Species occurrences: OBIS (CC BY 4.0), GBIF.org