Hint: Landscape
The answer to this puzzle is:
1. PLATEAU
2. MOOR
3. ORCHARD
4. BAY
5. WATERFALL
6. LAKE
7. RIDGE
8. VISTA
9. CAPE
10. COAST
11. TRIBUTARY
12. MARSH
13. LAGOON
2. MOOR
3. ORCHARD
4. BAY
5. WATERFALL
6. LAKE
7. RIDGE
8. VISTA
9. CAPE
10. COAST
11. TRIBUTARY
12. MARSH
13. LAGOON