Heidi Klum gets soaked after trading red carpets for rafts during fun day out at California's Disneyland Park with husband Tom Kaulitz

Heidi Klum got an unceremonious soaking as she visited Disneyland Park in California with husband Tom Kaulitz on Sunday.

The German supermodel traded red carpets for rafts while embarking on the popular theme park's Grizzly River Run with musician Tom.

Sporting hooded water-proof jackets and accompanied by Heidi's children, the couple let their hair down on the ride, which is loosely based on Disney's Animal Kingdom's treacherous Kali River Rapids.

Heidi, 51, was later seen with her hood pulled tightly over her tousled blonde hair as her raft came to a stop.

Earlier that day she wore a spooky Halloween themed pair of Micky Mouse ears and a bold graphic T-shirt while posing for photos at the Anaheim resort.

She teamed it with a pair of distressed jeans, styled her hair into beachy waves and shielded her eyes with aviator sunglasses.

Posing for a series of fun photos with Maleficent in front of the Sleeping Beauty Castle. Heidi flashed a smile.

Heidi is currently getting her Halloween costume together for this year, and it looks like it will be another gross spectacle if early photos are any indication.

The model recently teased a theme on Instagram, where she shared photos of a gooey lump and another featuring a covered figure.

It was hard to make out what she is working on but it is known she is collaborating with Mike Marino, a top Hollywood prosthetic makeup designer who is now on The Penguin with Colin Farrell .

The actress also referenced her Halloween costume in her new campaign relaunching UNICEF USA's 'Little Orange Box' to help Trick-or-Treaters collect donations as they go door to door.

She said it will be a good 'surprise.'

Asked if she could dress up as the box itself this year, she told People magazine: 'Hmm ... let's just say you'll have to wait and see! You know I love a good surprise.'

Heidi admitted the 'fun' each year is doing her best to 'outdo' her previous costumes, which bodes well for this year's offering.

She added: 'Every year, I go all out with my costumes, so each one holds its own special place in my heart.'

Heidi continued: 'The fun is in trying to outdo myself every year, but what really makes it memorable is the excitement and joy of the whole Halloween experience — there's just nothing like it.'

In the new 'The Box Is Back' campaign, Heidi appears with 'Project Runway' designers Erin Robertson and Kentaro Kameya, and 'Making The Cut' duo Ciara Chyanne and Jonny Cota.

She tasks the quartet with helping her come up with this year's costume, calling for something 'timeless' and 'retro', before telling Jonny: 'Think small but with a big impact.'

Ciara suggests a piece of turquoise fabric in a similar shade to the UNICEF logo, but Heidi wants it to be 'more orange'.