There already is a dash mechanic
Yes, I found that out shortly after posting this ironically. I didn't notice it on my first playthrough, all the long jumps I found other ways to get to via the aforementioned manner ironically. I thought it was odd at first but it makes a lot more sense now. I thought some of those out of reach areas were rewards for discovering that little trick at first!
Still, I really love what you have so far and I'll be keeping a close eye on this game. I think it has the potential to be something pretty special.