This is a very good dive site, particularly if you start from El Bells, follow the wall, and finish in the Blue Hole. We did it three times this way and loved it every time. Spending an entire dive inside the Blue Hole might get boring but doing it the way I described was thoroughly enjoyable. Watching tech divers and free divers at the end of each dive was very interesting and something a bit different from your average dive. Worth a visit for sure.