How to tell if cabin w/ Porthole is 1A or 4A?

[gander24]

My fiance and I planned a trip for our families on the Fantasy in August and booked a whole bunch of porthole rooms on the main floor. On Carnival's deck plans there is no mention of 1A vs 4A and the shading is for category PT - how do I figure out exactly what each cabin looks like? We'll be in M3, M5, M7, and M8.

[Tiffany1203]

Try google, youtube, webshots, or the cabin selections tips section on this site. Good Luck!