However, if you have been training with a light to moderate intensity during the week or you are a beginner at lifting weights, you can take a more active rest day. (fitnessandpower.com)
What a great active rest day Monday, anything with froyo is a good time for me! (marontherun.com)
Although I had always liked it, yoga felt like something you do on an active rest day — not a workout in and of itself. (mindbodygreen.com)