If there an outdoor plug and play Mesh WiFi solution?

The problem. Router/WiFi in the lake house at the top of the hill. Dock is about 300 feet away from the main house. You can detect the WiFi there but connection is pretty spotty and not very reliable. Would like a more reliable signal down there. Boat slips have a cover but it is not a weather tight area. Like a sideless pole barn over the water.

130 yards from the house is the shop/shed. Get good signal while outside of the shed but metal building blocks signal so it's not reliable while inside.

I've used/installed a Google Mesh network and a Velop network before. I enjoyed how they were just simply plug in and start using. I'm not completely computer illiterate but the less work I have to do the better. Is there something like that but can be installed outside in the elements? Ideally I install one on the outside of the shop and one at the dock. and they mesh together with a router or node inside the house. All the Mesh routers I've seen look like they are designed for in home use and no real outdoor solutions except for enterprise level solutions which look advanced and maybe out of my wheelhouse to setup and install.

If there are no outdoor Mesh devices perhaps an outdoor range extender could be installed at the shed and it should do a better job at reaching the dock.