Colonial Creek Campground offers 137 total campsites split between north and south loops on Diablo Lake's shores, with a fully accessible fishing pier and boat launch on the south side (note: launch may have shallow water due to silt accumulation).

The campground features direct trailhead access to Thunder Creek and Thunder Knob trails, operates with reservations late May through early September ($24/night), and accommodates RVs up to 36 feet, though most sites are small to medium and not ideal for large rigs.

Bear boxes are provided at each site, and no cell service or hookups are available.