Easy 6 miles

I did very easy 6 miles. It was horrible, my gluteus maximus (you see how sophisticated I am ) is sooo sore from lunges I did yesterday after workout. I always get sore from lunges (even when I do them without an addition weight), which means that I need to do them more to strengthen those muscles, right?
I wanted to go to pool tonight but it is temporarily closed, grrrr. I hope it is open tomorrow.


I found this duathlon nearby at the end of July but they say that mountain bike is recommended:( I need to see whether I can manage with hybrid bike tires (if they fit my bike...).