Complex sentence: Their achievements, of course, enhanced the celebration of the town fiesta (December 12), Christmas season, All Saint's Day, Flores de Mayo, and Santacruzan, they try their best to visit childhood friends.
Split into simpler sentences: Their achievements, of course, enhanced the celebration of the town fiesta (December 12), Christmas season, All Saint's Day, Flores de Mayo, and Santacruzan. On these occasions, they try their best to visit childhood friends.