The Scottish Crannog Centre has reopened near this note. I moved the old node marking the museum from the old site (on the other side of the loch) to near this marker - see here: https://www.openstreetmap.org/node/3707753952 The museum website contains no information that I feel identifies the site of the museum, beyond a link to the copyright information on Google Maps - so I've not been able to pinpoint the museum location. A survey is required, or local information sourced, to place the museum node more accurately.