A walk in the park is a leisurely activity that can involve a variety of activities. ROMP, a four letter word, is defined as to play or frolic in a lively manner. STROLL, a six letter word, is defined as to walk in a leisurely way. AMBLE, a five letter word, is defined as to walk slowly and leisurely. SNAP, a four letter word, is defined as to make a sudden, sharp, distinct sound. Piece of cake, an eleven letter phrase, is used to describe something that is easy to do. All of these words and phrases can be used to describe a walk in the park.