What should i do.. i’m worried

My bf is on vacation with his guy friends. We’ve been saying gm/gn every day so far. I’ve been letting him enjoy his vacation, i’m not the type to text him all day. however, he hasn’t answered me all day today and i’m getting really worried. they’re out in the mountains (yes maybe there’s no service but he had service in the airbnb)… the day is halfway over and i’m starting to panic a little bit. I hate being a clingy girlfriend but he’s not the type to ignore me or play games or anything. we don’t have that kinda relationship. we have a serious relationship and this is really unlike him. idk his friends at all, idk where they went, and i’m so worried. not to mention he’s also been telling me there are a lot of blatantly racist people towards him there. what should I do? should I try calling? I hate to be clingy or something.. but i’m really worried