A must-have for coastal surveys overseas

These are my must-have items when I survey and explore coastlines both at home and abroad. I walk over 10 kilometers a day on sandy beaches in harsh sunlight, feeling the changes and identifying issues. My NEXSUS 7 (SIM-free) has become a particularly valuable companion recently. It has built-in GPS functionality, and even when I'm offline, I can access Google Earth at any time, instantly confirm my location, and view coral reefs and coastal topography from various angles. It's useful not only for surveys abroad, but also in my personal life.