Is it the beach?
Yes, it is the beach.
    src        edge_attr  dst
0     0  to the right of   10
1     1               on    5
2     1      in front of    2
3     1      in front of    6
4     1  to the right of    2
..  ...              ...  ...
63   16   to the left of   12
64   16   to the left of    6
65   16   to the left of   11
66   16   to the left of    9
67   16  to the right of    2

[68 rows x 3 columns]