We were in Big Bear last summer camping for a few days. We rented a pontoon boat for a 1/2 day and crushed the trout. Night crawlers and light weight a few cranks off the bottom.
Make sure you cut the worms in half, or the trout will short bite them and you won't hook anything.
The kids loved being able to catch fish consistently. We put them on the grill for lunch and dinner.
It was a lot of fun. We didn't see any yaks in the water.