We too had a sheltered balcony, it was great for keeping out the weather but when seated or lounging, you cannot see out. I would have preferred a glass panel to watch for wildlife.
I love escargot and the one on Princess was well done. Yes it had some finely chopped mushroom in the cheese topping hich you could hardly notice and it was still delicious.
Long sleeve top, broad rimmed hat, spf 50 sunscreen applied regularly ans keep hydrated and in the shade as much as possible.
Also think of a lip balm that has a spf rating.