Ashton Kutcher and Mila Kunis honeymooned in Yosemite National Park.

The newlyweds - who tied the knot last weekend - and their nine-month-old daughter Wyatt were spotted by a Twitter user having lunch at the Ahwahnee Hotel, located inside Yosemite Park near the base of Half Dome and Glacier Point.

While Mila, 31, and Ashton, 37, politely declined to take pictures with the fan, they did offer a handshake.

The eyewitness told E! News: ''They seem to be having a nice time.''

The former 'That '70s Show' co-stars and onscreen couple tied the knot over the Fourth of July holiday weekend in a super-secret ceremony, and their wedding party was ''very relaxed''.

Mila and Ashton celebrated tying the knot with their family and friends at the Secret Garden at Parrish Ranch in Oak Glen, California, and are said to have been totally at ease as they prepared to mark the occasion with their nearest and dearest.

A source previously said: ''They seemed very relaxed. You would have never guessed they were actually preparing for [a big celebration].''

The couple - who also celebrated with a poolside lunch at their Beverly Hills home on July 2 - are said to have looked totally besotted with each other as they celebrated their private nuptials.

A source said: ''They're so happy. They're so in love.''