Of course there is stairway access to all Viking Crown lounges.
Interestingly there was only a stairway on the outside of the funnels on Royal Caribbean´s first ships to use, if you wished to go to VC.
Horizon 1990, 1992, 1999
Crown Dynasty 2000
Century 1996, 2001
Explorer of Sea 2003
Norwegian Dawn 2004,2005
Voyager of the Sea 05/05
Celebrity Zenith 1/23/06
Celebrity Century 11/13/06
Norwegian Dawn DD cruise 10/14/06
Celebrity Constellation TA 9/15/07
Norwegian Dawn 10/25-26 Nowhere
Yes, the Viking Crown Lounge is a great spot for sitting down, watching the pool deck and sea go by while drinking a cup of coffee. During the day, its usually very quiet unless they have some activity going on, but do go up and check it out.
The viking crown lounge is a great place to sit as you are departing ports except if you are on the Empress of the seas,they made the lounge into the gym.You can sit on the lower level of the crown but you hear the people working out above you and the smell of sweat.
What ever made RCCL do this is beyond me,I hope they change it back.