you better take sleds when you go to east pit as you can ride down the hill - ,should be a blast
the walk is about 500 - 800 meters it depends which way you take, down the hill will be shorter walk, if you're gonna walk around the south side of the lake you're facing a 30 min walk, especially in this snow.
regarding the fishing there Iam not sure how it is during the winter season as I only have fished the lake in the summer, some nice rainbows there, but the bite is never consistent, one day you end up having lots of fun, the next day you may question yourself should I be at a different lake
Give it a try and report back if you can.
Hike to Cardiff lol, you can almost cast to cardiff pond straight from the parking lot.
Cheers !