The Estádio Aquiles de Oliveira is the main sports ground in Vila Nova Sintra — a multi-use stadium that hosts football matches and other events for the small community. In a town with few public gathering spaces, match days draw the whole island, and the atmosphere at a local derby is warm and enthusiastic even if the football is amateur.
If you happen to be on the island during a match weekend, it is worth going simply to experience the social event that football represents on a small Atlantic island where entertainment options are limited. Check locally for fixtures.