How Fast Are You Actually Moving?
Most D&D groups handwave travel. The party needs to get from point A to point B, the DM says “three days later,” and everyone moves on. That works fine until the rules you’re ignoring would have made a better story.
Travel speed in 5e breaks into three paces: fast, normal, and slow. Fast gets you 30 miles a day but slaps a -5 penalty on your passive Wisdom (Perception). That’s not just flavor. That’s your DM’s formal invitation to ambush you while you’re sprinting through bandit country. Slow travel, on the other hand, lets the party use Stealth. You cannot stealth at a normal pace. That’s written right there in the Player’s Handbook, and it’s the kind of rule most tables never think about until someone asks “wait, can we sneak up on the camp?”
Forced March and Why Exhaustion Is Not a Joke
Push beyond eight hours of travel in a day and you risk exhaustion levels. This is one of those mechanics that sounds like a minor tax until you remember that exhaustion stacks, and enough of it leads to death. A forced march makes sense when there’s a real time constraint baked into your story. A kingdom falls in four days. The ritual completes at dawn. Without that pressure already on the table, players have no reason to push past the safe limit, and you’d be manufacturing tension rather than responding to it.
Difficult Terrain, Special Movement, and the Math Nobody Talks About
Difficult terrain costs 2 feet of movement per foot traveled, which is the game’s wordy way of halving your speed. Combine that with climbing, swimming, or crawling (each of which already costs an extra foot per foot) and you can genuinely be moving at one third of your normal speed. Picture swimming across a fast-moving river in a dungeon where the current counts as difficult terrain. You are nearly stationary.
Jumping runs off Strength in ways most players don’t actually know. A long jump with a 10-foot run-up covers feet equal to your Strength score. A high jump covers 3 plus your Strength modifier. A character with 18 Strength can long jump 18 feet or high jump 7 feet, and can extend their reach by 1.5 times their height on top of that. Someone really did write that letter to Wizards of the Coast.
The section on things you can do while traveling (navigate, track, forage, keep watch) is genuinely underused at most tables. Tracking has its own DC table in the Dungeon Master’s Guide: DC 10 on soft ground like snow, DC 20 on bare stone, and every day since the creature passed adds 5 to that number. Blood or other obvious sign drops the DC by 5. Those numbers are specific enough to actually use.
For PHB reference, see Chapter 8: Adventuring, pages 181-186.