1. Plan your route before you leave and tell someone where you're going and what time you'll be back.
2. Get to know your OS maps. Paper maps are great for planning - buy the one(s) for the area you'll be running in and look for footpaths and bridleways to run on. Custom maps - centered on your postcode - are great if, like us, you live in the corner of four different maps! OS Maps Online is also a fantastic resource - there's a subscription fee but it allows you to view any part of the country at up to 1:25,000 scale so it's fantastic for planning adventures.
3. Phones, watches and other GPS devices are great for taking out on the trails, but if you're heading somewhere remote always have a backup plan in case there's no signal or your batteries run out.: