Joannah Thelwell has donated a defibrillator to Dearnford Lake, near Whitchurch, in memory of her partner Nathan Jenkins, who passed away in 2013.
The equipment has now been installed in the cafe and training on how to use it was carried out by the West Midlands Ambulance Service.
Ms Thelwell, of Whitchurch, who took part in the training, said: "In July 2013 I lost my partner who died suddenly, aged 41, of Sudden Arrhythmic Death Syndrome (Sads).
"Myself and my friend set up a Just Giving page and we raised more than £2,500.
"Last summer I did a relay event at Dearnford Lake and was overwhelmed by the amount of people there.
"I thought it would really benefit from a defibrillator which would also help local people on the outskirts of Whitchurch."
Anne Jolly, founder of Sads UK, the Ashley Jolly Sad Trust, said: "Sads UK is pleased that Dearnford Lake will now benefit from having a defibrillator on the premises.
"Using CPR alone provides a five per cent chance of survival but using the defibrillator as well increases the chance of survival to more than 50 per cent.
"This is why Sads UK is so passionate about putting this lifesaving equipment in place."