To be honest, it was the pictures of the sea caves attracted me to visit Algarve, South of Portugal. And one in particular; Algar de Benagil.
So visiting this cave (or grotto in Portuguese) was one of the highlights of the trip.
I had booked the hotel closed to where this cave was locatated (10 minutes drive), but being in Portugal I suddenly had no idea how to visit it, except from expencive boat trips from cities like Albufeira, Carvoeiro, Lagos, Portimao and Faro. This in big boats that are too big to go into most of the caves.
So what we did, was to drive in our rental car to Benagil, a small village, for see if there were better options.
Infront of the beach two companies were selling trips in local fishing boats for 17 Euros per person (Price May 2016). However, due to big waves we were told to call the morning for ask if they were having trips. The sea was calmer and we therefore return next day, where the boats were going again.
We returned. I could not leave Portugal without seeing this!
The boat trip started from Benagil beach, going west into many stunning caves. Returning to beach, and finding out that the Benagil cave was located just around 150 meters east for the beach. No problem swimming to, if the water is calm. I would never reccomend swimming if rough sea, due to the rocks.
There is also a option to rent a kayak.
In other words, the Benagil cave can only be accessed by water. Boat, kayak or swimming is the three options availible.
The boat trip from Benegail beach can be reccomended, and was worth all the money. The cave was as beautiful as in the pictures.
However, an negative aspect is that you cannot go out of the boat while in the cave. We were told that sometimes this was possible, but then just in days where there sea was extremly calm.
A small tip:
Protect your camera, you will get splashes on it. Mine got full of salt water one time, and I just had to put it back in my camera bag, and started using my phone instead.