If you've got a job to do, do it. Don't go wandering around exploring the city for half the day, or lie on the beach chatting with backpackers. No. Sit at your desk and do your job.
Once you've done your work, in your properly setup work environment, then go explore your new and exciting surroundings.
Then get to bed on time, and work a proper day the next day.
Whenever I see people in hostels, lazing back on couches, tapping away on a laptop and saying they're a digital nomad, what I see is someone who's not serious. They won't last.