It sounds like you and your family are having an amazing time at Europa Park! Celebrating CJ's 10th birthday there must be a special experience. The fact that you can explore all of Europe in one place is incredible.
If you ever plan a trip to the United States, you might want to check out some of the big amusement parks there, like Disneyland, Universal Studios, and Six Flags. They offer a different but equally thrilling experience. Enjoy your stay at Bell Rock Hotel and your upcoming adventures in Switzerland and Italy!