 Extending from northeastern Boca Ciega Bay, Long Bayou separates Seminole from St. Petersburg near Bay Pines.Long Bayou once extended significantly farther up the peninsula until the northern portion was sealed off to create Lake Seminole.Extending further still from Long Bayou, the Cross Bayou Canal traverses the peninsula, crossing Pinellas Park in a northeasterly direction before emptying into Tampa Bay on the northwest side of St. Petersburg-Clearwater International Airport.