Animal welfare campaigners will gather outside Aintree racecourse, calling for the Grand National to be banned on the grounds of cruelty.
The annual Anti-Grand National demonstration is organised by Merseyside-based Fight Against Animal Cruelty in Europe (FAACE).
Officials at the world-famous Aintree course say it is now safer than ever for the horses.
They say new plastic frames for some fences pose less danger following the deaths of two horses last year. The starting post has also been moved 90 yards.