The big and small maps change depending on the day of the year.

Flying makes traveling significantly easier as there's a chance of
large waves warping you back to a previous area and sharks spread out
amongst the areas.

The order of appearance from North to South is:
    big map, small map, big map, small map, small map, big map

Big maps:

      [W]-[ ]                       [W]             [W]-[ ]
         /   \                       |                   |
        /     \                     [ ]             [ ]-[*] one-way exit (se)
       /       \                   /   \             |     \
    [ ]         [ ]-[ ]           /     \           [ ]     [ ]
     |               |           /       \             \     |
    [ ]     [ ] [ ]-[ ]   [ ]-[ ]         [ ]-[ ]   [ ]-[ ] [ ]-[ ]
       \   / |   |         |                   |     |   |       |
        [ ] [ ] [ ]       [ ]-[ ]         [ ]-[ ]   [ ]-[ ]     [ ]
             |   |             |           |           /       /
    [ ]-[ ]-[ ]-[ ]           [ ]         [ ]       [ ]     [ ]
     |   |       |               \       /             \   /
    [ ]-[ ]-[W] [ ]               [ ]-[ ]           [ ] [ ]
                                   |   |           /   \ |
        [ ] [W]                   [ ]-[ ]       [ ]-[W] [ ]
       /   \ |                   /       \
    [ ]-[ ] [ ]               [ ]         [ ]       [W]
         |                       \       /         /   \
        [ ]-[ ] [ ]-[ ]           \     /       [ ]     [ ]-[ ]
             | / |   |             \   /         |       |   |
            [ ] [ ]-[ ]             [ ]     [ ]-[ ]     [ ]-[ ]
                    /                |       |           |
                 [ ]                [W]     [ ]         [ ]
                  |                        /           /   \
             [ ]-[ ]                    [ ]         [ ]     [ ]
              |                          |             \
         [ ] [ ]-[ ]                    [ ]-[ ] [ ]     [ ]
          | \   /                            | / | \   /
         [W] [ ]                            [ ] [W] [ ]


Small maps:

   [W]-[ ]     [ ]          [W]            [W]
          \   / |          /              /
           [ ] [ ]-[ ]   [ ]-[ ]       [ ]     [ ]
                  /         /             \   / |
               [ ]       [ ]     [ ]       [ ] [ ]
              /   \         \   / |           /   \
       [W]-[ ]     [ ]       [ ]  |        [ ]     [ ]
                                  |               /
                             [ ]  |            [ ]-[ ]
                            /   \ |                 |
                         [ ]-[W] [ ]               [W]

              [W]            [W]
                 \              \
                  [ ]            [ ]
                 /   \          /   \
              [ ]     [ ]    [ ]     [ ]
               |                      |
      [ ]     [ ]            [ ]     [ ]
       | \   /                | \   /
  [ ]-[ ] [ ]                 |  [ ]
   |                          |
  [W]                        [ ]-[ ]
                                  |
                                 [W]