Should I activate my SouthESIM before landing or after clearing customs?

We highly recommend activating your SouthESIM before you even land at your destination! This is a fantastic budget travel tip. Imagine arriving in a new country like Mexico or Thailand, and needing to quickly check maps for your hostel, call a taxi via an app, or let family know you've arrived safely. Having active internet from the moment you switch off airplane mode means you're immediately connected, avoiding the scramble for airport Wi-Fi or local SIM cards. It makes your arrival much smoother and less stressful.