[kd5bjo]

For most countries, visiting with a tourist visa means that it’s illegal to work while inside the country. The intent is to prevent you from entering the local job market, so most countries will turn a blind eye to tourists who don’t completely cut themselves off from their employer back home.

The actual laws haven’t been updated to officially allow that, though, so you’re operating in a legal grey area; especially if you have some non-vacation days in-country. This makes it unambiguously legal to take an extended vacation where you support yourself by continuing to work remotely.

[blaser-waffle]

I've worked remotely in several countries (Australia, UK, Canada, parts of the EU) in short stints (2-3 weeks to ~6 months), and for the most part the governments don't care much. As long as you're not conducting business related to that country -- like selling to locals or trying to get a local job -- no one will dig too hard. If they ask, you're just there to do an extended vacation or backpack.

Parent comment is right, though: it is sort of a legal gray area. If you plan on having a long-standing relationship with that country it's probably worth doing things legally, if possible.