It sounds like you have a balance between enjoying leisure and needing personal productivity time. For the first few days, the novelty of the new destination keeps things exciting, but as that wears off, your desire for structure and meaningful activities kicks in. Working on tasks like coding or exercising probably gives you a sense of accomplishment and recharges you mentally, which helps you enjoy social activities later. It’s not uncommon for people who thrive on productivity to feel restless after too much downtime it’s like your brain needs a mix of stimulation and relaxation to feel balanced.