Complex sentence: By the mid 1960s, the club organised about ten Sunday rambles (some with two or more coaches each), one weekend away (called the Annual Dinner Meet), the Marathon and socials such as the progressive meal.
Split into simpler sentences: By the mid 1960s, the club organised about ten Sunday rambles, some with two or more transport coaches each. One weekend away (called the Annual Dinner Meet), the Marathon and socials such as the progressive meal.