The beach is a great day out and everything, but it has to be said that it can also be pretty impractical. The sand gets everywhere long after you've left, and there is the dilemma of where to go to the bathroom. You've got to make sure you have, at minimum, decent sun protection and hydration with you, and if you want to leave and come back again, you have to decide whether you are going to pack up every last thing or leave it there and risk somebody taking an interest in your stuff.
Of course, the stress is worth it for the magic of enjoying some time by the sea. You just have to be aware of your surroundings and make sure you have a backup plan if things don't go the way you planned them. It is no fun to have a beach day ruined just because of some impracticalities or the unnecessary actions of others. While some annoyances are unavoidable, some can be swiftly dealt with and allow you to keep on enjoying your time as you should be able to. It is important to take action.