Buses do not go directly to Eraclea Minoa, but they will stop and pick up from the road junction on the main SS115, about 4km away. From here you will have to walk (or hitch a lift). It can get very hot in summer. On the way back, you are more likely to be able to find someone to give you a lift to the road junction, or even further afield.
Rooms are available in the village behind the beach, and apartments may be rented near the beach.