In particular, do let me know ...
Is the main distinction of this directory from the (very many) other directories out there clear?
How long did it take you to fully understand it?
What do you think of it?
Many thanks for ... whatever you contribute and the time you took to do it!
I got the intended distinction right away, but doing ANYTHING is doing something. I suspect there are categories in your directory that list things that aren't especially suited for especially active people. I like the idea though, and I didn't see anything that I'd change.
I couldn't find any results for underwater splunking, but now that I think of it, I think I spelled it incorrectly. I don't do it anyway. Too dangerous.