According to their website: Up the spiral staircase to the sanctuary of 30 seats with no children allowed under 9 years!
It doesn't give a seating plan unfortunately and I haven't flown Sunshine Upper. I flew Sunshine First and it was rows of 2 seats on either side, I'd imagine with 30 seats it would be a similar set up. Hope this helps a little.
Thanx Anz for replying. I seem to think it is 3+3 and my DH seems to think it is 2+2 so we are heving a sort of discussion about it anyway not long till we find out who is right and who is wrong!!!!!!!