We were scheduled for 3 dives, 2 at Sipadan Island & one at Mabul, where we stayed the night. Unfortunately, Charlie only did one & I did two as Charlies regulator wasn't working properly on the first dive so he used his spare one but that was difficult to breath through too so he changed to some ladies to come up but hers was completely broken so he breathed in a load of water & had to change to my spare one but was coughing by this time & it was really horrible for him so he didn't go down again as he was still coughing & his chest really hurt. Apart from that tho the dive spot was amazing, we saw two turtles, an octopus, barracuda, grey reef sharks & white tip sharks & hundreds & hundreds of fish. The water was really clear so you could see miles away. It was out of season but sometimes you can see hammerhead sharks there, thank god it was out of season!