Mel T.
Yelp
We visited Grotto Azurra as a part of the Motocafisti Capri boat tour. The caves have a separate entrance fee that you need to pay in cash on site at €18 per person. You also need to tip your boat guy on top of that. Since we were on a tour, we transferred from a tour boat onto one of their row boats, in the middle of the water. 2-3 people fit in a boat (not including the rower), so hubby and I were stuck with a rando. We got there at around 11 am, and there were a lot of boats but we only waited about 10 minutes or so to get into the cave. I've read this can be hours during peak season but thankfully, we went in April. There's also a line on land for people who I'm assuming found their way to the grotto themselves, but it seemed like they were prioritizing the people coming from the tours.
Once inside, you're with a bunch of other row boats so it's definitely not as magical as what you see on the gram. But the water is still amazing. It's like a neon blue from the way the sun reflects on it. We rowed around for not even 10 minutes before heading back out. The opening for the cave is super small, so you have to lay down in the boat to get in, and the rower basically leans back on top of you.
It's worth the experience for the amount of time we waited (though pricey). But if I had to wait anything more than 30 minutes, I don't think it would have been.