August: The deepest canyon in the Sierra is at its best when Cedar Grove is open and the high country is snow-free, from the Rae Lakes Loop to Mist Falls.
Permits and reservations
No reservation is required to enter Kings Canyon or Sequoia. An entrance fee is collected at the entrance stations (or buy a pass online to skip the line). Camping, lodging and cave tours do need reservations.
Wilderness permits (quota season): Required for overnight trips. Quota-season permits can be reserved up to 6 months ahead and release daily at 7 a.m. Pacific. Outside quota season, permits are self-issued at trailhead kiosks.
Campgrounds: Reservations are required for camping in the park's campgrounds. Book on Recreation.gov.