The RTM Museum is a riding railroad museum, displaying steam and diesel locomotives, vehicles and freight wagons from transport company Rotterdamsche Tramweg Maatschappij (RTM), the renowned – and once the biggest – transporter on the islands of South Holland. RTM’s old stream train still rides across the Brouwersdam, giving passengers a historically fun experience and a great view across the Grevelingenmeer. “RTM was founded in 1878, originally to exploit a network of horse tram roads,” explains Sam de Haan, secretary at the RTM Museum. “The company had over 235 kilometres of tramway and owned several ferries and buses.