I can absolutely recommend staying in Fernandos apartment. It is as described very close to the bus and the metro stop and you can walk to the beach in 5 minutes. The whole apartment is flooded with light through the big windows. It's absolutely possible to cook some easy dishes as there is a little basic kitchen equipment.
The only thing you have to consider is that it takes about half an hour to get into the city center. But if you especially plan to go to the beach for a few times this is the apartment you are
looking for 😄.
(In winter time you should additionally bring some warm socks with you as the floor is actually quite cold)