Morrish will also work with the trading teams to strategically maximise sales revenue and develop new business opportunities.
The cruise-and-stay specialist currently has offices in the UK, Dubai, South Africa, Perth, Brisbane and New Zealand, with plans to expand into Europe.
Chief executive Robin Deller said: “I’m delighted to welcome Steve to Imagine Cruising and am incredibly excited that he brings specific and strong cruise line experience to the business.
“His input is a great addition as we continue to pursue our growth strategy, and I’ve no doubt he’ll be an integral part of us achieving our vision on schedule.”