Honestly I'm a lot too cowardly to do this, I just have this massive curiosity urge (yknow, autism does that) and search engines are completely useless at this. I don't wanna get banned from any Minecraft servers.
I presume there are obscure communities of people who have experience getting into the theme parks without paying any Minecoins. Some kind of hacker forums maybe? (cheating is bad!). People who discuss how not to get caught by the Piglins, who warn others on rookie mistakes and track cases of players getting caught.
I was wandering if you people of anarchistic tendencies 
would know anything about where to find those discussions and read stories of people who do that
I saw this Minecraft video with a high Res texture pack where the players sneak in by using a yellow vest skin and a clipboard in hand (craft with a plank and iron ingot). Don't know if it works if you want to bring a large inventory with food and drinks though.
When I was young I managed to find a glitch to get in the cinema of my Minecraft server for free, but it was specific to our layout and couldn't be used in other facilities or even other cinemas. :/
Incredible gaming content thank you
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: