Last year I went on a 2 week long entrepreneur-ish conference on a cruise ship. Due to satellite internet limitations, my phone/laptop usage was limited to 1-2hrs per day, usually in the evenings. Rest of the time I spent mingling, joining workshops, talks, or just having fun on the boat.
Now mind you, I'm not a particularly social person. Being around people so much was very much out of my comfort zone, but it still felt great! I felt productive and relaxed at the same time, probably because I was able to focus on a single thing at the time, and wasn't being constantly distracted by notifications on my phone or emails and Slack conversations on my laptop. It was sort of a detox from the constant information bombardment of the digital age.
I really need to do that again.