Place
- Earth (Planet)5
- Frenchman Bay (Me.)5
- Hawaii5
- Jasper Ridge Biological Preserve (Calif.)5
- Long Island Sound (N.Y. and Conn.)5
- Nepal5
- Pakistan5
- Paris (France)5
- Senegal5
- Yuba County (Calif.)5
- Algeria4
- Blue Hill Bay (Me.)4
- Casco Bay (Me.)4
- Ipswich Bay (Mass.)4
- Jordan4
- Machias Bay (Me.)4
- Mongolia4
- Nantucket Sound (Mass.)4
- Narragansett Bay (R.I.)4
- North America4