Who pays for the rescue efforts, when silly adventurer' s go missing?

when people do these daft things, they should take out some sort of insurance, to pay for their rescue! or the rescue teams should just rescue the genuine people who need rescuing through no fault of their own.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).