The Diamond Valley Railway is located within Eltham Lower Park which is located within the Nillumbik Shire Council. The bushland setting of this park includes two adventure playgrounds, both with covered barbeque areas and tables and accessible toilets. Extensive walking paths span the park and run through the railway and down to the Yarra River where there is an observation platform and impressive bridge across the river.

Located between the Diamond Valley station and the adventure playground you can find a sausage sizzle run jointly by the Eltham Rotary and various community groups. The Travelling Cafe, which has a variety of hot and cold drinks, and an ice cream van can be also found here. A short 5 - 10 minute drive along Main Road (turn right out of the park) will bring you into Eltham Town, where there are a variety of food and drink options available.

The new accessible adventure playground opposite the railway features a continuous accessible pathway throughout the site, all-abilities harness seats on swings and flying fox, elevated sand trays for wheelchair access, tactile panels with Braille and Auslan symbols throughout the site and sculptures outlining the life cycle of the Eltham Copper Butterfly including wooden caterpillars and giant ants.