Spotted eagle ray

Present year-round with both sources reporting more activity in winter months.

Year-round diving. The sources disagree on the best window: DiveIn recommends November to May and reports 82F water and 30m+ visibility in February; Bluewater prefers May to July for fewer crowds, warm water and staying ahead of hurricane season. Aug-Oct is the peak of Caribbean hurricane season and individual days or whole weeks get cancelled, which is why those read 'limited'.

Schooling on the Rays Corridor drift.

Open year-round with no closure. Nov-Apr is the warmer, wetter half with occasional cyclone risk; May-Oct is drier and also covers the whale season. Low operating

Frequent around the Nashua tug.

South shore wreck diving runs year-round and is sheltered. North shore is seasonal in practice: winter (Nov-Mar) brings the swell Oahu is famous for and the Haleiwa tours cancel frequently. Because the wrecks are unaffected, the destination reads 'open' throughout, with the north-side caveat carried in the trip formats.