SailSim - Sailing Simulator

I have really been enjoying this game. I really liked going through the lessons, but it is difficult to see which questions I got wrong as the notification only shows the first few words of the question. I am very happy to have completed every lesson and challenge! I have completed the first two adventures, but for the life of me I cannot figure out what is needed for the third adventure. The instructions are unclear. I have sailed through every part of the map and there are no more arches or bridges to sail under. Please I am begging you to tell me how to finish the final adventure!

Has anyone beat this challenge? Seems impossible and I can’t move forward in the app.

Im a USCG licensed sailing captain, and love the idea behind this app, but it needs alot of work. Wish i could get my $2.99 back lol. Paying for and “unlocking” the app does nothing. Needs to be full access if you pay for full unlock. A free sail mode would be ideal. Wind and boat physics are not realistic. Hope will be improved upon in future updates. for now, not really worth the download.