Proceeds from the open day go towards the centre's £1.6m running costs
There's a rare chance to see behind the scenes at the RSPCA in Bristol in May.
Visitors to the centre in Albert Road, St Philips can see interactive displays and the clinic's operating theatre, as well as the animals at the home.
The open day on 15 May is aimed at families and people of all ages and happens just once every two years.
Mandy Stone, veterinary manager at the clinic, said: "This really is a wonderful opportunity to see our work in action.
"There will be other wildlife and animal welfare organisations attending with an array of different animals to meet and learn about." she added.
"There will also be the local RSPCA inspectors and our very own dog behaviourist who will be able to give tips on training problem dogs."
Doors Open at 10.30am until 4pm. Admission is £1.50 for adults and 50p for children and proceeds will go towards the centre's £1.6m annual running costs.
RSPCA Bristol Branch is made up of the RSPCA Bristol Clinic and Bristol Dogs and Cats Home.
The clinic treats thousands of animals every year and runs a 24 hour veterinary service for lost, sick and injured stray animals.
It also provides subsidised veterinary treatment for people on a low income, a first aid centre for wildlife casualties and "well dog" clinics for the animals of homeless people.
Bristol Dogs and Cats Home provides care, shelter and a re-homing service for nearly 2,000 unwanted dogs, cats and small animals every year.