I hiked into Coral lake a couple of years ago. The hike itself is not too bad, can be done in a day 12-16hrs if you're fit and truckin it! We took it pretty easy on the way up as we were staying up there for a few days and the fact that we had fifty pounds of gear on our backs. We arrived at the lake in two days but it was well worth it. Fishing lakes you can use scuds 16-18 and leeches 10-12, we were doing fairly well with the scuds. As soon as the sun cleared the mountains the lake started to boil which is when we had our best fishing, then and before sun up. The fish were pretty small and you can bring a three weight but pack a five as well because the wind up there can get pretty bad at times. On the way out with a lot less gear and hungry for something other than cous-cous or rice we made the hike out in 14hrs.
If you or anybody plans on going there be respectful of the land you're in, it really beautiful up there and try to leave it as you found it.