A rise in sea temperatures in recent weeks has seen many of the creatures return to our coastline – especially off Inishowen.
As well as large numbers of Porbeagle sharks and basking sharks, there have been sighting of huge minke whales which can grow up to 24 ft and weigh five tonnes.
As well as these larger creatures, there have been sights of large shoals of jellyfish.
Wildlife ranger and marine expert Emmett Johnston said up until recently there were very few sightings of many creatures especially basking sharks.
The rangers had been left baffled after the shark’s disappearance but soon realised it was related to the drop n sea temperatures.
However he said in the past couple of weeks, Donegal’s waters have literally been awash with sea-life.
“It is a complete transformation as to what was happening a few weeks ago.
“Back then a number of creatures including the basking shark were nowhere to be seen because they had passed through our waters.
“They had headed out into deeper waters where the temperatures are a little warmer and where they can feed better.
“However the temperature has risen now and there are lots of sightings of a lot of different species including basking sharks and even minke whales,” he revealed.