I'm on a 10h layover in DXB, arriving from YYZ and continuing on to JNB. I'll be traveling in business class. I'd like to have a shower once I land in DXB, and then go into the city. Is this possible? There doesn't seem to be an arrivals lounge any more, but given that I'm transiting perhaps I can use a "regular" lounge and then leave the airport?

Thanks for any advice!