All mainland (except Gaeta I and Zindra) are now connected. Unfortunately, if someone takes a ship/boat from Heterocera, one quickly realizes there is not a "through waterway" to the southern Sansara seas.
I propose creating a channel to connect the inland seas to the South Sansara Ocean as follows:
### Option 1: South Canal
  1. Add an ocean sim
    south of Shawangunk
    /
    west of Ruthenium
  2. Create a canal
    southward of Koscina
    going through
    Mud
    and
    Shawangunk
  3. Optionally
    , add 2 more ocean sims: 1
    west of Osmium
    , and 1
    west of Grand Banks
### Option 2: East Canal
  1. Add 6 (six) ocean sims as follows:
- East of
Gulquac
- East of
Nueltin
- East of
Hjalmer
- South of
Bireme
- South of
Teslin
- South of
Snafu
  1. Create a canal from
    Oyster
    that goes through
    Keener
    ,
    Yoho
    ,
    Old Wives
    , terminating in the bay of _Old Wives_
Note: Depending on whether there's sailable water in
Gulquac
,
Snafu
, and
Promethium
, up to 3 (three) additional ocean sims might need to be provisioned.
Due to the amount of resources need to be deployed, I think
Option 1
is more palatable.
However
, Option 2 also allows residents from the "Arts Sims" / "Southern Islands" (Renoir-Warhol-Picasso-Kandinsky and everything to their east) access to the waterways connecting all mainlands.