- Beaches
- Riverbanks
- Dunes
- Marshes
- Wetlands
- Estuaries
- Deltas
- Tidal flats
- Salt flats
- Alluvial fans
- Mudflats
- Playa lakes
- Deserts
- Oasis
- Wadis
- Canyons
- Ravines
- Gullies
- Sinkholes
- Caves
- Underground rivers
- Aquifers
- Geothermal areas
- Volcanic areas
- Tectonic plate boundaries