How to make a milestone birthday (70th) special?

[Alps79]

I'm not very creative and hoping I can get some good ideas that will make this really special. My mom is turning 70 in two weeks. We have rented a beach house about 3 hours away and our entire family will be there. 6 adults and 4 kids (girls ages 4-11.) Her favorite cake is carrot cake so I will make and bring. Thinking 7-0 balloons. She loves sparkling wine so maybe personalized stemless champagne glasses that say "Cheers to GiGi." Maybe 2 dozen really beautifully iced/personalized sugar cookies. 
Any other ideas that would make this trip really special? We're cooking our meals in and have planned her favorites. 
She would love for her granddaughters to be in matching swimsuits or coverups- stores that sell in that age/size range? 
I'd like to have some surprises when we got there that would help make the weekend extra special. Thanks!

[cjcouple]

For my sons 11th, I'm currently putting together a video montage of clips of my sons friends and family Wishing him a happy birthday. I am mixing in pics from growing up. I have to say these videos i am getting are so great and way better than I expected. if you have time, I highly suggest it.

[pinkballoons]

I don’t know the feasibility of this, but for my in-laws’ 50th anniversary we hired a photographer to take some portraits. All of their formal photos had been taken in a studio, but this photo session was more like a modern engagement photo session. The pictures were gorgeous and they loved the experience.