Note - There is a cost to visit the gardens by Villa Cipressi
There are various business which offer private /group cruises of Lake Como.
The company " Lake Como Boat" cost can be split for a max group of 6 people per boat.
There are also other companies that can be found on Trip Advisor
https://www.tripadvisor.co.uk/Attraction_Review-g187837-d4521211-Reviews-Taxi_Boat_Varenna_Day_Tours-Varenna_Lake_Como_Lombardy.html
There is a local small beach in Varenna to visit
There are various panoramic view points from the hillside of Varenna for a view of Lake Como with various trail types.
There is a Public Ferry dock in Varenna which is easily accessible to visit other areas of Lake Como such as Bellagio and Menaggio.
Varenna castle is more than 1000 years old with amazing views over Varenna.
Blanco Lounge Bar & Restaurant where guest could use the facilities of the pool / bar / restaurant / drinks.