Hi. We are looking at booking Portugal for 10/14 nights next August. 2 adults and 2 teens (17 & 15). They would like an on site water park, or one close by at least. I would like to be walking distance to the beach and am not averse to it being fairly lively with bars and restaurants. Not AI as we all like to try different local restaurants. We’ve never been to Portugal before, can anyone recommend somewhere that fits the bill? We haven’t flown abroad for years and I’m a little overwhelmed & not sure where to start! Budget is around 4k absolute maximum. Thanks!