Summer Thirst Quencher

My friend, newly returned from China, turned me onto watermelon juice aka big chunks of watermelon thrown in the juicer.  And do not let the photo deceive you into thinking I meticulously removed all the seeds because I did not.  This was a seedless watermelon but they say the seeds are good for you too so feel free to throw them into the blender too. Any favorite summer drinks you're especially smitten with?