BOCA CHICA BAY
BOCA CHICA BAY. Boca Chica Bay is five miles southeast of Port Isabel and three miles northeast of the mouth of the Rio Grande off the extreme southeastern part of Cameron County (centered at 26°00' N, 97°09' W). It is two miles long and is bounded on the north by Brazos Island, on the east by Del Mar Beach, on the southeast by Boca Chica Beach, and on the southwest and west by Mesa del Gavilán. Boca Chica is Spanish for "little mouth."