My corner of Scotland is still bouncing back after the most recent glaciation, about 10,000 years back. The relative sea-level is dropping at about 1mm a year - may not seem much, but when the Romans came the sea-level would have been getting on for 2 metres higher than today, which meant the tide flowed a significant way further up the river estuaries than it does now, and helps explain the locations of Roman camps and crossing-places.
Of course if global warming melts the Greenland ice-sheet, the sea could rise very quickly back to Roman level or even higher.