You can play Caldera by adding the server in the Minecraft launcher.
On Minecraft Java Edition, open the Minecraft launcher. Click “Multiplayer” and then “Add Server” and enter the Caldera IP Address mc.calderaminecraft.com in the “Server Address”. Then press “Done” and start playing.
For Minecraft Java Edition, the Caldera IP is mc.calderaminecraft.com.
To join Caldera, follow the instructions on how to play above.
In Caldera, you can play Survival, MCMMO, PvE, Towny and PvP.
To vote for Caldera, click the vote button at the top of the page. Then enter your Minecraft username and click “Vote”.
The website for Caldera is https://www.calderaminecraft.com.