Regiones
Nantucket Sound
18 Barcos
Egmont Key
17 Barcos
Keewaydin Island
17 Barcos
Procida
16 Barcos
Oregon Inlet
16 Barcos
Roanoke Island
16 Barcos
San Pablo Bay
15 Barcos
California Delta
15 Barcos
San Francisco Bay
15 Barcos
Harford County
15 Barcos
Marin County
15 Barcos
Danube River
15 Barcos