Can't 'clean up' trash in Sulani

I keep having my Sims beachcomb for trash it seems to be working but not saving the process of cleaning up Sulani.

Any sim can clean up Mua Pel'am not just the ones doing the career. Are you trying to clean up the "puddles" by the sulfur pool? If so, they take several tries to clean up. Just keep clicking "clean up" and you'll eventually get them.

I had that issue too. For me, having my sim move around the pile and try from different angles would eventually work. But combing the beach for trash also helps to clean up the island so I'd probably suggest doing that instead, because trying to find the right spot where your sim will get to the pile gets quite tiresome quite fast. You don't have to do the career to clean up the island, but it'll be faster from what I've gathered.

Thanks, everyone - I'll try to 'clean up' some of those spots again.

Editing to add - yes, it's working just fine, now. I must have had bad luck with the first ones I tried.