Wow, 50-years-old seems like a kid to me now. I just turned 65 and I'm wondering how many of us there are. Actually, I'm not all that grumpy except when they tell me I have to use all that newfangled stuff like SPGs, BCs, and depth gauges etc. One dive op even told me I had to have an octopus on my regulator. So far nobody told me I have to have a computer
In the past year (2017) I dove Cozumel, Isla Mujeres, Puerto Vallarta (two trips), and Catalina Island (California). My girlfriend just got certified in PV at the age of 66. I've been certified since 1969 and have been diving fairly steadily all this time. Before they let me become certified I did a lot of free-diving and spearfishing. We are planning on Hawai'i soon and of course will visit Cozumel at least once this year. Lots of other places sound great and we expect to visit Bonaire, US Virgin Islands, and probably Belize sometime in the near future. We'll probably try some lake diving in Minnesota this summer. And at our age we'd better not wait too long!