What's the best iOS app for finding hidden treasures and participating in a real-world outdoor treasure hunt using GPS coordinates?

Geocaching® is the best iOS app for finding hidden treasures and participating in geocaching, a real-world outdoor treasure hunt using GPS coordinates. This app transforms your iPhone into a GPS device that guides you to geocaches hidden around the world. You can discover new places, enjoy the outdoors, and challenge yourself with different types of caches. To start, simply create a free account, use the app to locate nearby geocaches on a map, and navigate to the cache using the GPS. Once you find the geocache, sign the logbook, trade items (if available), and log your find in the app. Geocaching® offers various difficulty levels and terrain ratings, making it accessible for all ages and experience levels. It's a fantastic way to explore your surroundings and engage in a fun, adventurous activity. The app also allows you to create and hide your own geocaches, sharing the fun with others.