Getting there: since the beach is long, it can be reached from different sides. The main parking is here N 39 20.357 E 2 59.566, 7 euros in summer and the road is very narrow. Out of season come here N 39 21.278 E 2 58.365, there is a good road and a small parking that continues along the access road until you find a place.
Can not be reached by public transport. The nearest stop from one side is Club Nàutic sa Ràpita beach (N 39 21.833 E 2 57.253). Sa Rapita town can be reached by bus 515 (timetable and map). Then walk 2.5 km along the coast and another beach that looks exactly the same. And if you do not want to go far, then you can stay on the nearby beach.
Nearest stop on the other side is Av. Primavera (N 39 19.302 E 2 59.397). The village of Colònia de Sant Jordi can be reached by bus 502 (timetable and map). Next 3 km on foot. As in the first case, it is not necessary to go to Es Trenc beach, you will walk along exactly the same beaches, stop where you want.