Yes, absolutely safe. Naturally, if you use common sense! The

Consider that you are going to a Muslim country and try to dress modestly: simple dresses, medium-length skirts, jeans, T-shirts without a pronounced decollete. Choose a larger hotel, where there will be many vacationers.

However, these are general recommendations, rather rules of behavior, rather than warnings. Your security in Tunisia is practically nothing threatening - you can go alone, no one will stick. Of course, if we adequately assess the situation and leave in a timely manner, suppose from a disco.

Be ready, that European girls are constantly watched here. In hotels the staff is well-trained, there is no question of any harassment. But outside the hotel - in the city, in the market, etc., be prepared to be looked at.