Definitely weekend. Some wants to spend the night at genting so I think that should be optional.
Maybe we do saturday morning around 10am. Drive for picnic around lunch. Then up to Genting. Have coffee, free and easy then drive down. If you wanna stay the night, up to you, no problem.
Actually, this whole trip can be done in a few hours, especially if you just want to drive and not stop at genting. Maybe be back by 3pm? or 4pm?
Someone has to sort out the parking for our cars up there.
Date also have to confirm... maybe end of the month?