Portugal is an amazing country, that is overlooked by way too many. Aside from Lisbon, also known the European San Francisco, and Porto, Portugal offers a lot more. Amazing beaches that are a surfers dream make the country the perfect European surfing getaway. And while it could be argued, that the food is similar to Spanish food, you should definitely give the local cuisine a try.
Furthermore this beautiful country is perfect for roadtrips and female solo travel. If you have time, I recommend combining it with a few days in Spain as international flights there tend to be less expensive.