McLean Museum & Art Gallery

The McLean Museum sits in Helensburgh, a Victorian seaside town on the Clyde estuary, and it's one of those local galleries that doesn't shout about itself but genuinely rewards a visit. The collection spans Scottish art, natural history, and local heritage - you'll find everything from Colourist paintings to fossils and artefacts connected to the town's shipbuilding past. It's compact enough that you won't need more than an hour or ninety minutes, which makes it ideal if the weather's turned and you're staying at one of the nearby caravan parks like Rosneath Castle or Hunters Quay.

Families with older children will find plenty to engage them, particularly the interactive displays about Helensburgh's industrial heritage. Younger kids might lose interest quickly unless they're the museum-loving sort. Art enthusiasts should definitely make the detour - the Scottish modernists and Colourists section is really quite good, and you'll likely have the space practically to yourself on a weekday afternoon.

The museum is free to enter, which is brilliant, and it's within easy walking distance of Helensburgh's seafront and High Street. If you're basing yourself at Rosneath Castle Caravan Park, it's a straightforward drive across the Water of Leven. Worth factoring in if rain derails your outdoor plans, but don't reorganise your whole itinerary around it. The real draw here is combining it with a proper wander along the Clyde coast and perhaps a visit to Hill House nearby.