The semi-natural nature of some parts of the San Valentino Park allows for observation of interesting plant species, such as the rare common maga grass, the shaded plant on the soil of moist and essential nutrient interactions, and the digital sod, a species that inhabits shady places on dry soil and fleeing from populated centers or buttercups. The Iguanian is extremely rare and is endemic to the forests of the northeastern plain of Italy.
One of the hallmarks of San Valentino Park, which cannot escape those who walk between its roads, is the Snow House, a characteristic open-stone building on a small hill, in a wooded area between promoters.