Complex sentence: He is best known for his walking exploits in the Scottish Highlands, having completed multiple rounds of the Munros and being the first person to walk all the Munros in a single trip with only ferries and a bicycle as means of transport.
Split into simpler sentences: He is best known for his walking exploits in the Scottish Highlands. Having completed multiple rounds of the Munros and being the first person to walk all the Munros in a single trip with only ferries and a bicycle as means of transport.