Hex-grid Legend: 

Map of Thémos

1 hex = 60 miles


Travel Speeds:

Normal pace20 miles/day
Fast pace30 miles/day*
Slow pace10 miles/day**

*when travelling at a fast pace characters take a -5 penalty to their passive perception scores 

**when travelling at a slow pace characters are able to act stealthily


Vehicles: 

Horse

Horses and carriages do not impact travel times* but can allow characters to carry more with them while they travel and, for passive passengers, allow a chance to accomplish other tasks while travelling.

*Gallop: if riding a horse with no carriage, a player can choose to push the horse for a short burst of speed. This allows for travel at twice the normal speed for one hour at a time. 

Ships/BoatsMove at double the normal pace.
Flying vehiclesMove at triple the normal pace. 


Limitations:

If characters travel for longer than 8 hours in one day they risk exhausting themselves. At the end of each additional hour of travel, players must make a constitution saving throw, taking 1 point of exhaustion on a failed save. 
If trying to travel with items that a character would not normally be able to carry with them (i.e., something very heavy or cumbersome), they move at half-speed unless they have a wagon or carriage to lighten the load.
Moving through difficult terrain (e.g., steep inclines, dense forest, etc.) forces characters to travel at a slow pace without the usual benefits.