The phrase "back to the salt mines" is often used to express the disappointment that one feels about returning to work after a period of rest or vacation. The antonyms for this phrase would be "enjoying leisure," "relaxing," and "taking a break." When we are not working, we have the freedom to do things we love and enjoy, such as spending time with family and friends, exploring new places, and pursuing hobbies we are passionate about. So, instead of dreading the return to work, we can focus on the things we love to do and use our time off to recharge and rejuvenate for the next working spell.