Is that possible for us to see threshers by attending Discover Scuba Diving (DSD)? We don't have an OW or AOW license and will not plan for completing the courses this year.
I'd recommend speaking directly to the staff about your plans since I'm not an expert! The Monad Shoal where Threshers are often seen is at 30m, so your best chance of seeing them is to complete the OW and then arrange to do a deep dive with your instructor. I definitely recommend diving even if you don't plan on doing the OW, as there is plenty of fascinating marine life to see (reef sharks, cuttlefish, squid, nudibranchs, shrimp etc) on the reefs around the island.
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