I did my Aida free diving training at conger alley and loch fyne. We got bad weather so the vis was shite at Loch long, it can also get pretty busy with scuba folk. Otter ferry is a good spot on loch fyne, if you can get lunch booked at inver then there’s also some nice spots near the restaurant.
The scuba lot were looking down their noses at us at conger alley until we rescued one of them lol