Be aware that Portugal is Schengen. If you overstay there, then other Schengen countries (so most of Europe) may not allow you entry in future. That doesn’t always happen but it’s a pretty massive risk if you’re from the UK.
Be aware that Portugal is Schengen. If you overstay there, then other Schengen countries (so most of Europe) may not allow you entry in future. That doesn’t always happen but it’s a pretty massive risk if you’re from the UK.