Are there any shower facilities located on any of the islands, or even close? I'm looking to stay on Long Island but cant seem to find any info on showers. Thanks

There are pay showers at norowal.

There is also showers at boltons landing!

Hearthstone Campground, very nearby to Long Island, has showers available - and docks. Though I cant couch for their policy on pulling up and showering while your boat is at the dock.

Only at the campground

There are no showers on any islands in the narrows or mother bunch

Yes, there are, at the Rogers Rock Campground , and I believe there are ones in Hague too