Have a quick stopover arriving into Keflavik early afternoon and leaving next day approx same time. Looking for some recommendations for food, accommodation and think I’d like to do the blue lagoon, anything really - open to ideas to make most of the time. Likely to hire a car for the short stay. Getting a bit overwhelmed with choice on other things, and would prefer recommendations and pointers on what needs booked well in advance and what’s reasonable to fit in during such a short trip. Happy with basic accommodation for one night, 2 adults and 2 children. I know it’s expensive🙈. Kids are good with most types of food. Many thanks in advance.