The operator's Arctic Collection has welcomed several new Norwegian experiences, promising further additions later this year.
New options include a wider array of locally-hosted accommodations, putting Norwegian hospitality and warmth at its core, and sail-rail combinations in the Fjords.
Huw Price, Not in the Guidebooks' product manager who recently returned from an exploratory trip to Norway, said the Scandinavian nation is "becoming an increasingly popular destination for those who are looking to experience something different to the usual holiday hot spots, and we believe agents will welcome these new additions to our Arctic Collection programme.
"The new itineraries are designed to give travellers the opportunity to experience the Fjords in a completely unique way and immerse themselves in genuine Norwegian local hospitality."
Cultural and wilderness experiences have also seen a boost: from cultural city breaks blended with outdoors explorations to seasonal options with snow hotel stays and Northern Lights viewing excursions.