Head up to Ibaraki's Hitachi Seaside Park from mid-April to early May and see a whopping 5.3 million 'baby blue eyes' – also known as nemophila – flowers in full bloom. The hilly grounds span 3.5 hectares and are almost completely covered with the little blue blossoms, making for a pretty spectacular sight.
The blooms are usually at their best from mid- to late April, but they are still a magnificent sight if you catch them a bit earlier or even right after peak bloom. According to this year's forecast, the flowers will be in their full glory between April 22 to 30.
Along with the flowers, the park has gone all-out with blue food and drink for you to enjoy during your visit. Sample blue ramune-soda-flavoured soft cream served with nemophila-shaped cookies, pretty blue lemonade, lattes, and even a blue-tinged curry. While you're at it, pick up a few souvenirs to take home with you including nemophila lollipops, tea bags, cookies and even blue-coloured soap featuring the flower of the season.
The park is also home to various other spring flowers including daffodils and tulips which also bloom between April and May.