A quiet beach day is easier to arrange if it does not become a search for the most secret stretch of coast. Pick somewhere you can comfortably spend a few hours and settle the practical details first: access, parking, water and food.
Decide what quiet means to you
You may want to read without nearby music, have an easy approach with a child or simply enjoy a different view. Be clear about why you are going. It helps avoid replacing a good nearby beach with a distant place just because its name sounds appealing.
Do not assume facilities
Check where you can eat and whether the facilities you need are available. Bring water and a way to keep belongings dry. Do not cross private land for a shorter approach, and follow signs at the site. Assess the sea on the day rather than from old photographs.
Keep the rest of the day flexible
Avoid adding several fixed appointments in different parts of the island after the beach. If it gets hot, rain starts or children have had enough, leave yourself a straightforward return. The transport should serve that plan, not force you to finish a list regardless.