The Gilbert Lake fishing area in California is known for its abundance of rainbow and brown trout. Nearby activities include hiking, camping, and wildlife watching. Anglers looking to catch trout should use a variety of baits and lures, such as worms, spinners, and flies. The best time to visit is in the spring and fall when temperatures are mild and the water is cooler. The average temperature during these seasons is around 60-70 degrees Fahrenheit. Overall, Gilbert Lake is a great destination for outdoor enthusiasts and fishing enthusiasts alike.