This summer, travelers face anxieties about disruptions, natural disasters, political instability, and illness. Experts offer advice on how to prepare and mitigate these travel fears for a smoother vacation.

Are you afraid to travel this summer?

Jan Howell is afraid of the water levels this summer.She’s booked on a Danube riverboat cruise, and she’s concerned that the water levels won’t be high enough for the ship. That could turn her cruise into a bus tour — or even cancel it. Months of careful planning would go down the drain.