https://sandwichisledivers.com/ An independent photographic record of the water off the Kona coast of Hawai'i: the reef animals a diver meets, the sites a small boat can reach, the skills that hold up in current, and the seasons that change what swims past. en-us Sun, 20 Sep 2026 08:00:00 GMT https://sandwichisledivers.com/room/skills/kona-reef-photography-in-natural-light/https://sandwichisledivers.com/room/skills/kona-reef-photography-in-natural-light/Sun, 20 Sep 2026 08:00:00 GMTSkills and trainingHow depth changes colour on a Kona reef, how to expose for moving animals, and when a strobe earns its place in your underwater kit. https://sandwichisledivers.com/room/dive-sites/anchoring-a-six-passenger-boat-on-a-reef/https://sandwichisledivers.com/room/dive-sites/anchoring-a-six-passenger-boat-on-a-reef/Sat, 19 Sep 2026 08:00:00 GMTDive sitesHow a small dive boat picks a mooring, reads a sand channel and runs the swim, plus what mooring rules mean for the divers in the water. https://sandwichisledivers.com/room/conditions/humpback-season-on-the-kona-coast/https://sandwichisledivers.com/room/conditions/humpback-season-on-the-kona-coast/Fri, 18 Sep 2026 08:00:00 GMTSeasons and conditionsWhen humpbacks reach Kona waters, what shifts in the sea, and the approach distances that keep both boats and whales out of trouble. https://sandwichisledivers.com/room/sea-life/honu-on-a-kona-reef-where-they-graze-and-rest/https://sandwichisledivers.com/room/sea-life/honu-on-a-kona-reef-where-they-graze-and-rest/Thu, 17 Sep 2026 08:00:00 GMTSea lifeGreen sea turtles on Kona reefs: where honu graze, where they rest, and how close a diver should come without changing their behavior. https://sandwichisledivers.com/room/sea-life/how-a-frogfish-hunts-without-moving/https://sandwichisledivers.com/room/sea-life/how-a-frogfish-hunts-without-moving/Wed, 16 Sep 2026 08:00:00 GMTSea lifeA frogfish ambushes prey by camouflage, a lure, and a strike measured in milliseconds. Here is how the still hunter feeds on a reef. https://sandwichisledivers.com/room/conditions/reading-swell-and-wind-before-the-boat-leaves/https://sandwichisledivers.com/room/conditions/reading-swell-and-wind-before-the-boat-leaves/Tue, 15 Sep 2026 08:00:00 GMTSeasons and conditionsWhat wind and swell tell a captain before the boat clears the harbor, and how the same read of broken water works on a fly river. https://sandwichisledivers.com/room/skills/reading-current-before-you-get-in/https://sandwichisledivers.com/room/skills/reading-current-before-you-get-in/Mon, 14 Sep 2026 08:00:00 GMTSkills and trainingHow a diver reads a tide line, a channel and a swell from the boat, and why the safety stop is where the water finally shows what it was doing. https://sandwichisledivers.com/room/dive-sites/a-two-tank-kona-morning-boat-to-boat/https://sandwichisledivers.com/room/dive-sites/a-two-tank-kona-morning-boat-to-boat/Sat, 12 Sep 2026 08:00:00 GMTDive sitesSix passengers, a twenty-minute ride, and a thirty to sixty foot profile: how a two-tank morning on the Kona coast actually runs, and how the second site gets