Check the visa requirements for the specific European countries you intend to visit and obtain the necessary visas prior to your travel.
To avoid cultural misunderstandings, familiarize yourself with the local customs and decorum of the countries you will be visiting.
Travel insurance that covers medical emergencies, excursion cancellations, and other unforeseen events is essential.
It is preferable to exchange currency at local banks or withdraw local currency from ATMs.
Be vigilant in congested areas and popular tourist destinations to avoid becoming a victim of pickpocketing.