Selmo, in answer to your question, YES! You
can be a Viking on Holiday and go back to RL the rest of the time. Lookup "Viking Recreation" on
www.google.com, and I'm sure eventually you'll find a local restorationalist group in your area that likes being Vikings for the weekend.
I went upstate to hang out with my local Viking group, saw the stars, had roast pig - darn that took a long time to cook - and witnessed Viking society at play. Very interesting that they had a form of the caste system. If you wanted to join you started as a "slave" and owned no possesions. Then as you learned their system, you were slowly integrated until finally you bought your freedom, and started acumulating wealth. Once you had the correct tent, and all the gear, you could get yourself a few slaves. Then you'd be a lord. It was fun watching the group vote on whether or not one fellow had worked hard enought to warrant his freedom. The celebration of his newly voted in status was something to behold.
(Not to mention the copious amounts of mead that were available!) mmmmm... I love mead...!