Just edit the scenario? If there is a little issue bugging you, just fix it yourself. Some of these comments on these are strange.

I don't want the player to be in the water sorry. The whole idea of the scenario is to unlock land.

I really love the aesthetic and theming of this scenario but it desperately needs some tiles marked for purchase - you can't even use the lake at all for any water rides despite the park boundary going all the way up to the shore. I would love to use the back half of the park but I can't! :(

Love it! Gonna try this scenario!