Misogi
Last year, I made one of dream trips. Japan in Spring. While in Osaka, I visited the world-famous Osaka Aquarium. This is a waterfall cascading into the otter enclosure there. While everyone else was busy snapping the otters, I made a day-time long exposure (2 seconds) on my Lumia 1020 and a variable ND filter attached using a rubber band. No tripods were allowed so this took me a good 10 minutes handheld.
Edited slightly with Creative Studio.
All the best to everyone! Have a great week ahead