The Odawara Flower Garden in Kanagawa is a beautiful botanical garden known for its diverse collection of blooming flowers. The early summer timeframe is one of the garden's highlights, with plenty of seasonal color to enjoy in the form of irises and water lilies.
The annual Iris and Water Lily Festival is held on the garden grounds from early June to early July, and it includes around 1,000 irises in 180 varieties alongside water lilies and hydrangeas.
The best part? Admission to the garden and parking are both free of charge, making for a budget-friendly day out.