Anywhere on GC has the potential to be a good tech diving site, as the wall drops off so suddenly and so close to shore. That being said there are some that are really good - sand chute in West Bay being one of my favorites. There's a full trimix site called Funky Monkey on the northwest side which I like a lot as well.Are there a lot of popular tec dive sites on GC?
We're going there for the first time early next year and will be diving with Divetech. Would definitely be interested in training there down the road.