Cruisers have rushed to book voyages to the White continent after watching the first episode of ITV’s The Cruise: Voyage to Alaska documentary.

The series is set on the 3,100-guest Star Princess and is the fourth to be filmed on a Princess Cruises ship.

More than 3.5 million views – peaking at 3.7 million – tuned in to watch The Cruise: Voyage to Alaska with bookings to the region more than doubling since it aired.

Two more episodes of the series will air – the second this Thursday on ITV at 8.30pm and the final one on the following Thursday.

Tony Roberts, Princess Cruises’ vice president UK and Europe, said: “The Cruise continues to go from strength-to-strength and we’re thrilled with the response to the first Alaska episode and previous Mediterranean series.

“Alaska is a stunning setting for the documentary and has clearly captured the imagination of viewers. From the scenery to the wildlife to the welcoming locals it really is a very special location and we feel proud to be able to share our 50 years of Alaska experience with ITV viewers.”