Accepted students, join the facebook group!
http://www.facebook.com/groups/338565609593290/
Second Look is indeed April 26th and 27th. There are different activities on both days, some educational and some pure fun. Guests (like parents or SO's) are invited for different activities on Saturday only. People can go both days or one, depending on their schedules, but if you CAN go to both you should! You'll be able to stay with a first-year student Friday night (and participate in some very fun social events) if you stay overnight and come to both days. Accepted students will be receiving their official invitations to Second Look in the next couple of weeks.
If you guys have any questions about life at UMass, let me know! I *love* this school and I couldn't be happier to welcome new students in August.