I think it is time to scatter my parents ashes, I would like some ideas please?

I know this might sound horrendous, so forgive me. But when my parents passed on I kept their ashes, in the side cupboard to be exact.
I feel now it is time. I am going through all this transformation stuff, about my home and life. So I feel along with this would be the letting go. I don’t want to be sobbing all over the place. How can I make it a joyous occasion? I am thinking of the sea, because it is just down the road. Plus I think I might feel better for letting go? I also get scared that I will regret it and try and grab their ashes back. I know it sounds stupid, but that’s how I feel.