Across
1
Low area between mountains
4
Low-lying land surrounded by higher ground
6
Height above sea level
11
Narrow sea inlet between cliffs
Down
2
Where river meets the sea
3
Steep rock face at edge of land
5
Deep narrow valley with steep sides
7
Goods sold to another country
8
Vast body of salt water
9
Half of the Earth
10
Land surrounded by water