Girls, What do I do about showering?

Im a transwoman, I got invited along on a "girls trip" to go camping on the beach with a few coworkers since its our slow season. It will be at a national park I've been to before as a kid, but I also distinctly remember the showers were very exposed, like they didn't have stalls, or if they did they didn't have doors.

They all know im trans & they eagerly invited me, & i want to go, but i don't want them to feel uncomfortable. That said it'd be very unsafe for me to use the men's, and one thing I do know about salt water and sand us its not good for hair or skin.

Im not sure how to navigate this.

Updates
9 mo
Well, to follow up, we went to the beach for a few days & we had fun... the only time anything was said to me. about the shower was when I was being too shy about it & they told me to get over it because we had things to do... yes there were other women there, no nobody cared... they probably didn't notice tbh.
Girls, What do I do about showering?
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