the dance floor should be about 20x20 or 400 sq ft. the whole floor (including eating area) should be about 900 sq ft. I would say at least 10x10 feet. ask the coordinator at your venue how large the dance floor usually is and then you will know how many squares to rent.
Many harp seals are able to live up to 30 years in the wild. After 12 days the mothers abandon their babies. On the ice, pups call their mothers by bawling and mumble while playing with others. Adults growl and warble to warn off others.
From all my friends who had become SEAL's when I was in, most didn't get into the training program right out of Boot Camp, but instead were accepted into the program after two of three years of active duty. Having been stationed with the seals for several years, the average age seemed to be about 21/22 years. And no, I was not a SEAL. You might be lucky and a current member might respond with a more accurate answer, but in the meantime, I hope this helps.