What is the minimum castle level required to see crystal mine and DSA?

Since the update on 17 July 2023,

There are some restriction among Guest account and Non Guest account (low level accounts).

This measures are to prevent the bot accounts from spamming & searching mines.

Below details are the update related with, Restriction on guest & low level accounts

For Guest Accounts

• Can't chat
• Can't send message or mail
• Can't migrate
• Can't see crystal or DSA mine (DSA: Dragon Soul Amber)

For non-Guest Accounts

• Can't see crystal mine until you reach level 11.
• Can't see or mine DSA mine until you reach level 21.