Sarapiqui is generally safe for solo female travelers. It is known for its peaceful rural areas and abundant natural beauty including rainforests and rivers. The locals are friendly and welcoming. However, like any destination, it's important to take standard safety precautions. Always be aware of your surroundings and keep your belongings secure. Nighttime safety can be a bit of a concern, so avoid walking alone at night and stick to well-known areas. Local transportation can be quite safe, but it's advisable to avoid hitchhiking.