Hmm... Quoting the rules:
Interestingly, what do you mean by the absence of a prohibition? It is necessary to check whether the hero retains sea movement points when fleeing and subsequently buying them back... If so, then this is a bug, and using it is prohibited.
For the future, the "Hat" needs to be thoroughly analyzed and broken down into points... :) Not everything there is a bug, as it may seem at first glance, but at the same time, there are bugs that are not visible at first glance...
But why are we keeping silent about the previously made clarification regarding "using navigation bonuses on land"? :confused:
I was solely guided by this clarification.
And I discovered this trick while playing and simply didn't have enough time to do what Dmitry did later, as I was playing under time constraints.
I won't argue whether this is a bug or not, but I haven't encountered any prohibitions on this. In my opinion, the rules should clearly state what is prohibited (since the principle "what is not prohibited is allowed" applies). If you recognize this as a bug, please indicate it in the rules as well.