During some summer days, daylight is visible for 24 hours: the sun doesn't set during those days.
Summer Solstice and Winter Solstice
No. The southern hemisphere experiences its longest daytime hours in December. the shortest daytimes are in the northern hemisphere.
Ontonagon, Michigan has the longest daylight hours. Previously put by someone else was Marquette, Michigan, which reaches at peak 15 hours and 50 minutes of daylight. Ontonagon at its peak is 15 hours and 53 minutes making it the longest.
summer
There are no 'rivers' in Antarctica, unless you consider glaciers as flowing rivers of ice. You can review the lists, below, and identify the longest glaciers in Antarctica.
Daytime is longer during the summer solstice.
The duration of Daytime Drinking is 1.93 hours.
Lambert Glacier in Antarctica
The Antarctic Peninsula.
Sunset, sunrise, the daytime and nighttime skies in Antarctica display every colour imaginable.
Antarctica has the longest coastline among all the continents.
As can be observed on any sunny day, the shadows are longest at sunrise and at sunset.