The California Peninsula is a region located in the western United States, bordered by the Pacific Ocean to the west and the Gulf of California to the east. It is home to three distinct geographical features: Baja, a four-letter term for the lower part of the peninsula; Reyes, a five-letter term for the mountain range that runs along the eastern side of the peninsula; and SINAI, a five-letter term for the desert located in the northern part of the peninsula. Together, these three features make up the California Peninsula.