While Prince William and Catherine, the Duchess of Cambridge, were happy to let the world in on their special day, the details of their honeymoon were kept top secret.

Now that the pair has returned to their everyday lives, details have emerged as to what the newlyweds got up to while they spent time together on a super-luxe private, rented island in the Seychelles.

After initially delaying their honeymoon, the pair left for Seychelles on May 10 to spend 10 days in the $6000-a-night villa. Upon their arrival they were presented with a coco de mer ("love nut") by locals, an aphrodisiac coconut and fertility symbol unique to the island.

Focusing on their mutual love for the great outdoors the pair spent time getting to know the local wildlife, Us magazine reported.

"They got to see some wonderful things," Amanda Hunt, press attaché for the Seychelles government, told the magazine.

"They are very aware of our environmental record and the fact that Seychelles puts such a high premium on our environment.

"Over 50 percent of our land is deemed as a nature reserve ... It's definitely very important to Prince William."

Prince William and Catherine visited the island in 2007, long before their engagement.

"He mentioned that again on departure, how his expectations are always superseded by how well we look after our environment," Hunt said.

She also said the pair very much enjoyed the wildlife and went on several dives with Prince William noting that the coral reef at Seychelles Island is one of the best he has ever seen.

"They saw a turtle nest hatching. The turtles come off out of the sea and they lay their eggs," Hunt said.

"Not many people get the timing right to be able to see the eggs hatch and the little turtles swim out into the sea. You have to get up very early to see it."