One of the prime locations is Tenerife, part of the Canary Islands. It's a perfect spot for holidaying, being off the coast of Africa, so benefitting from year-round warmth, but cooled by a constant breeze from the trade winds, preventing it get too warm.
The island's visitors are a mix of nationalities, with Germans, French and Spanish (the Canaries, of course, being Spanish owned) joining the British and occasional visitor from further afield. The locals are all multilingual but tend to prefer English as their default language. Knowing that French, Italian and Scandinavian visitors will speak English, it gives them a safe middle ground language. It has almost become what Esperanto planned to be.
So British holidaymakers find it an easy place to navigate. Even the road signs are recognisable being standard ones adopted across the whole of the EU. Water and food packaging have been harmonised via Single-Market regulations and quality standards are the same as every other EU country. Passport controls are minimum and health care is free because of the European Health Insurance Card. Even electrical devices work okay (with a plug adaptor) due to EU voltage directives and mobile phone charges are the same as at home.
With all this, it is interesting to note what might be lost if the UK fully leaves the EU. And what could have been achieved with an on-going commitment to the European Union.