The episodes, scheduled to air on 15 and 22 April at 8pm, will follow Calman on a sailing from Barcelona onboard the Oasis-class ship.
From scaling one of the two 40-foot-tall rock climbing walls to catching waves on the FlowRider surf simulator, Calman will showcase her first-hand experience of the voyage.
The episodes will also feature the European destinations Calman visited during the sailing, including Palma de Mallorca, Rome, Lucca and Naples.
Ben Bouldin, vice president EMEA for Royal Caribbean International, said: "We were so pleased to welcome Susan and her team onboard Harmony and give her a taste of the fun to be had with Royal Caribbean while in the Mediterranean.
"This summer, holidaymakers can have their pick of eight incredible ships cruising in Europe, including our newest Oasis-class ship, Wonder of the Seas, in Barcelona. I hope these episodes will inspire new and returning guests to book a getaway with us this summer."
