Rock-boring Urchin

1. Belle Mare PasseQuatre Cocos, MauritiusDriftEstimated: Intermediate+18 mBest Apr–Dec · estimated3 mm
2. Buddha IslandNai Harn, Phuket, ThailandChannel · ReefEstimated: Beginner-friendly15 mGood year-round · estimated3 mm
3. LeleiwiHilo, Hawaii, United StatesPinnacle · Reef · WallEstimated: Intermediate+22.9 mGood year-round · estimated3 mm
4. TwinsLogon, Malapascua, PhilippinesReefEstimated: Beginner-friendly10 mBest Jan–May · estimated3 mm
5. Coral NurseryAlofi, NiueReefEstimated: Intermediate+25 mBest Feb–Dec · estimated3 mm
6. Tepa PointAlofi, NiueReef · WallEstimated: Intermediate+30 mBest Feb–Dec · estimated3 mm
7. Ras QusierAl Quşayr, El Quseir, EgyptDrift · Reef · WallEstimated: Intermediate+30 mBest May–Dec · estimated3 mm
8. Matavai BombieAlofi, NiueReefEstimated: Intermediate+30 mBest Feb–Dec · estimated3 mm
9. FAGG REEF (WWII Tanks)San Fernando, Luzon, PhilippinesReef · WreckEstimated: Advanced+42 mBest Jan–Apr · estimated3 mm
10. Lingsat Marine Protected Area (LMPA)San Fernando, Luzon, PhilippinesReefEstimated: Advanced+35 mBest Jan–Apr · estimated3 mm
11. Maritime CollegeSan Fernando, Luzon, PhilippinesReefEstimated: Beginner-friendly18 mBest Jan–Apr · estimated3 mm
12. Manza CoralOnna, Okinawa, JapanReef · WallEstimated: Intermediate+30 mBest May · estimated3 mm
13. Lhoni KanduNaifaru, Lhaviyani Atoll Faadhippolhu, MaldivesChannel · Drift · ReefEstimated: Intermediate+30 mGood year-round · estimated3 mm
14. MaafilaaNaifaru, Lhaviyani Atoll Faadhippolhu, MaldivesPinnacle · ReefEstimated: Intermediate+25 mGood year-round · estimated3 mm
15. Sand RiverAlofi, NiueReefEstimated: Advanced+40 mBest Feb–Dec · estimated3 mm
16. Lambugan Dive SiteSampalan, Bali, IndonesiaDrift · ReefEstimated: Advanced+40 mBest Apr–Nov · estimated3 mm
17. Swahili nurseriesUkunda, Diani, KenyaReefEstimated: Beginner-friendly12 mGood year-round · estimated3 mm
18. Faufa’aAfareaitu, Society Islands, French PolynesiaReefEstimated: Advanced+40 mBest Jan–Nov · estimated3 mm
19. Passe HaumiAfareaitu, Society Islands, French PolynesiaDrift · WallEstimated: Advanced+40 mBest Jan–Nov · estimated3 mm
20. Turtle TowersHell-Ville, MadagascarReefEstimated: Beginner-friendly10 mBest Apr–Nov · estimated3 mm
21. Enden Park / Lemon Shark ValleyPapetoai, Society Islands, French PolynesiaWallEstimated: Intermediate+29 mBest Jan–Nov · estimated3 mm
22. Paniau NorthWaikoloa, Hawaii, United StatesCavern · ReefEstimated: Intermediate+24.4 mGood year-round · estimated3 mm
23. Turtle Mound Mauna Lani Makaiwa BayWaikoloa, Hawaii, United StatesCavernEstimated: Intermediate+18.3 mGood year-round · estimated3 mm
24. Blue CaveYomitan, Okinawa Prefecture, JapanCaveEstimated: Advanced+39.6 mBest May · estimated3 mm

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