Hats, Hope & Hounds!

A cute gray and white dog with fluffy ears and a playful expression, licking its nose, against a bright yellow background.

Mad Hatter’s Dog Day is a joyful family event celebrating creativity, kindness, and canine companionship - and it’s all for a good cause.

Held at the award-winning three-acre site at Elmtree Canine Retreat in Waltham Abbey, this hat-filled funfair is the official launch of the Haute Dogs 2026 Calendar. Expect dog shows, demos, crafts, food, a marketplace of pet-friendly brands - and of course, lots of hats!

All profits from the event go to Underdog International, a UK charity working to create a kinder world for children and dogs through rescue, education, and therapy dog programmes.

Three dogs behind a metal fence: two are standing on their hind legs with tongues out, and one is sitting with a happy expression.
A young boy with light brown hair and wearing an orange shirt is sitting on the floor holding a fluffy white dog with a rainbow-colored bandana. The boy is smiling and the scene appears to be at a gathering or event with several other people and dogs in the background.

About Underdog

Underdog International is a UK charity helping children and dogs around the world through:

  • Rescue & Rehoming — saving dogs from abuse, neglect, or conflict zones

  • Therapy Dog Programmes — placing dogs in schools to help children with anxiety, SEND, or trauma

  • Kindness & Welfare Education — reaching over 367,000 children globally through free lesson packs, school visits, and events

We aim to positively impact two million children and dogs by 2030. Every calendar bought, every raffle ticket entered, and every cake eaten at Mad Hatter’s Dog Day brings us closer to that goal.

Find out more at www.theunderdog.org

Three dogs behind a metal fence, two are standing with front paws on the fence, one is sitting on the ground inside the enclosure, all appear happy and playful.
A young boy in an orange shirt sitting on a wooden floor, hugging a fluffy white dog with a colorful rainbow bandana, at a social gathering with other people and dogs in the background.

About Haute Dogs

Underdog International is a UK charity helping children and dogs around the world through:

  • Rescue & Rehoming — saving dogs from abuse, neglect, or conflict zones

  • Therapy Dog Programmes — placing dogs in schools to help children with anxiety, SEND, or trauma

  • Kindness & Welfare Education — reaching over 367,000 children globally through free lesson packs, school visits, and events

We aim to positively impact two million children and dogs by 2030. Every calendar bought, every raffle ticket entered, and every cake eaten at Mad Hatter’s Dog Day brings us closer to that goal.

Find out more at www.theunderdog.org

Mountain range with a lake in the foreground, partly cloudy sky

  • It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world.

  • It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world.

  • It all begins with an idea. Maybe you want to launch a business. Maybe you want to turn a hobby into something more. Or maybe you have a creative project to share with the world.