Does the calm water look shallow or deep?
The water is shallow.
    src        edge_attr  dst
0     1   to the left of   13
1     1               in    0
2     1   to the left of   12
3     2   to the left of   12
4     2  to the right of   16
..  ...              ...  ...
58   20   to the left of   15
59   20   to the left of    3
60   20   to the left of    5
61   20   to the left of   13
62   20   to the left of   12

[63 rows x 3 columns]