The most reliable way to explore Meghalaya is by hiring a private taxi from Shillong. This gives you the flexibility to stop at viewpoints and manage your own schedule.
For budget travelers, shared Sumos (Maxi Cabs) run between major towns (Shillong to Cherrapunji or Dawki), but their schedules can be unpredictable, and they don't cover offbeat tourist spots. Renting a scooter or motorcycle in Shillong is becoming popular, but riders should be highly experienced with steep, winding, and sometimes wet hill roads.