Auchendennan is just outside Arden, on the eastern side of Loch Lomond. It's part of a group of eight cottages converted from old farm buildings. Yours would be one of them.
They all sleep six and have three bedrooms. Each cottage has its own bathroom and a hot tub. Some have saunas. The one called Farm Cottage is all on one floor and has wheelchair access.
The location is really why you're here. You're right in the middle of the Loch Lomond & The Trossachs National Park. There's a pub a few minutes' walk away. The nearest shop is about two miles, in Balmaha.
You can walk down to the loch shore from here. For sailing or boat trips, you'd go to places like Balmaha or Luss. The starting point for climbing Ben Lomond is at Rowardennan, which is a short drive up the lochside.
Within half an hour you've got Cameron House resort for golf or a spa day, and Loch Lomond Shores at Balloch for an aquarium and shops. Glasgow city centre is about a 40-minute drive if you needed something bigger.
For facilities: all the cottages have parking, WiFi, and a washing machine. Bedding and towels are included. They allow up to three pets. There's an electric vehicle charger on site.
If you're looking for information on walking or things to do, the Visit Scotland walking page is useful, as is the National Park site linked above.