Because the rate of snowfall varies from site to site, the age of the firn when it turns to ice varies a great deal.
At Summit Camp in Greenland, the depth is 77 m and the ice is 230 years old; at Dome C in Antarctica the depth is 95 m and the age 2500 years.
A nice place to start would be the Dao-Dao Islands some seven to ten minutes away from the seaport, when riding a motorboat.
It is a rather big island, with an area size of about 1.1057 hectares.
In polar areas, the sun is visible day and night during the local summer and invisible all winter.
It can make some snow sublimate, leaving the top inch or so less dense.
The coral reefs are artificially made, but the whole place is very much ideal for swimming, fishing, and boating.
During low tides, a smaller, more undeveloped island appears and like the rest, is also suitable for fishing and swimming.There is also the White Beach that, as its name suggests, is a stretch of white sand beach just minutes southeast of the seaport. The clear, deep, blue waters (even during low tides) are excellent for swimming and diving.The Bomba Beach, located in barangay Bomba some 2 kilometers away from the city, is also a good area for swimming and fishing, with a bomba bridge and natural coral reefs.Depths of over 400 m were reached, a record which was extended in the 1960s to 2164 m at Byrd Station in Antarctica.Soviet ice drilling projects in Antarctica include decades of work at Vostok Station, with the deepest core reaching 3769 m.The weight above makes deeper layers of ice thin and flow outwards.