Love the game. One suggestion, though:
In trip 2, if the player failed the speech check in Old Marae with Gull (which is very easy to fail), not only is Old Marae locked from the player, but all the locations beyond Old Marae are also rendered inaccessible from the player, hiding entire regions and storylines from the player until trip 3, and the game only has 5 trips.
I feel that Nadine or someone else should tell the player the route to the Tosende Canals when this happens as an alternative or fail-safe. The player can always travel around/past a city instead of stopping anyway.