Exercice - Present simple or present be + ING?

We are arriving on the beach. The sand is very hot and the sun is shining. There are a lot of people here. The kids are swimming and the parents are watching them. I like to come here and listen to the sound of the waves. I spend my weeks working near another beach and I often go there during my breaks or for lunch. Today I am spending my day with my family and they are happy to enjoy the sea. My little cousins are already running to the water.

Jane is jumping on the boat. She is very happy to have this trip to see whales. She is currently reading a lot of books about sea creatures and especially about whales. She sits on the bench quietly but is screaming of excitement inside. The boat leaves the harbour and sails slowly towards the sea. Jane is wondering how many whales she might see today. As the instructor explains that the passengers must not scream, Jane is already watching the depths of the sea to be the first who sees the biggest fish on earth.