Jonathan Morgantini Community and Social Media Specialist |
Finoan |
There are the published Hexploration subsystem rules in Player Core. But like all subsystem rules, they are guidelines to use as a starting point for homebrew. And may even be overridden by published APs.
But looking at the rules, a hex is 12 miles from corner to corner.
Traveling to an adjacent hex typically costs 1 exploration task (can be adjusted for the terrain of the hex and the method of travel). And if the slowest member of the group has a speed of 12 - 25 feet (and 25 feet movement speed is fairly standard), then the group only has 1 exploration task available per day - though they can do a forced march to do 2 movement tasks in one day.