Hi everyone,
Newcomer here! I'm interested in writing, ball sports, traveling and surfing. Recently, I've been getting into diving since I had my first scuba experience about a month ago in Puerto Galera, Philippines.
Have any of you ever gone diving? If so, what countries or dive sites have you been in?
To those looking for suggestions, specifically in the Philippines, I highly recommend Puerto Galera! Super fun and memorable experience 
Hi.
Look into a visit to Thailand.
Depending on the passport you travel with, most entry requirements are easy to meet for Thailand. (Normal stuff, sufficient funds to support yourself and proof of a return ticket or flight to a different country.) The month you visit will determine the weather best for beach and other activities.
Good luck.
I used to do a lot of scuba diving and have dived in some amazing places. Learnt with BSAC in UK. BSAC training (in those days) was extensive, long and required you achieve a very high standard to qualify. I also did PADI whose training was designed more for people with a few free days in a holiday resort.
Diving in UK waters is "hard work" for limited reward so did most of my diving in warmer places with coral reefs.
But, over time I got to watching other divers (limited experience PADI divers mainly) and gradually became horrified by the damage so much diving was doing to the reefs. Inadvertent damage ie not breaking off coral for souvenirs but eg stirring up sand, disturbing the wildlife, etc.
So I stopped. I could not accept my recreation doing such damage to wild environments.
Ian
I did my first SCUBA dive in 1967 - my instructions were - do a back roll off the boat and don't hold your breath. They sent someone with me - a guy named Mitch - as a 'minder'. I think this was before PADI or any organized instruction had been set up. It was in Key West. 
A couple of months later in January 1968, I did a class in SCUBA in Key West from a shop called Diver's Den - the man in charge was named Don but I don't remember his last name. Their main problem with me was that I have an undershot bite and they were afraid I couldn't hold onto the mouthpiece. They weren't concerned with the fact that I was 5 months pregnant. It was cold in January in an outdoor pool so I borrowed a wet suit top from the husband of a friend. After the class I did one dive, but the vibration of the boat bothered pregnant me and I also didn't think I should be doing something that expensive with family money.
So I didn't go diving again until 1997 when my husband wanted to charter a sailboat in the Virgin Islands. He wanted to buy a sailboat and sail out to Bermuda and down to the Virgin Islands. He wanted to see if I could live on a boat
I found that the captain of the boat was qualified to do PADI instruction, so I took another class in an indoor pool this time and did my checkout dives in the Virgin Islands. We did two charters that year in the Virgin Islands from the same people - one in Feb and one at Thanksgiving. I was able to talk my husband into doing a resort course in Thanksgiving, and he decided that if I was going to dive, he really needed to be certified as well because I shouldn't be doing it alone. We did buy a sailboat, before I had decided whether I could live on one.
In 1998 I went to Belize for the diving. https://grandmarbelize.travellerspoint.com/4/
Later that year we went to Cozumel and Bob took the Padi course from a shop there and I spent the week diving. https://grandmarbelize.travellerspoint.com/45/
Diving in Cozumel, Belize and the VI is the best I have done.
After we were both retired in 2000, we would sail south in October and spend the winter in Florida and the Bahamas. Then my husband had a heart attack at an uninhabited key in the Bahamas, and after that except for diving with my daughter and son-in-law in Miami (I borrowed my son-in-law's gear and he just free dived), most of my dives have been off our sailboat to do things like get the barnacles off the transducer or check the prop for barnacles. I could have just surface dived, but I am so bouyant that I can't stay down without weights. We never did sail out to Bermuda - even though my husband called me "chicken of the sea". I wouldn't go without someone with us and he didn't want anyone else on the boat with us.
I'm not diving anymore but I still snorkel - even if I can only do it in a pool now. I took a cruise around Australia, but I got sick with the Australia flu (because people got onto the ship sick which I have never forgiven the for) and I couldn't go when I got there because I was too sick.
We went diving so many years. We did a padi-instruction course on Bonaire, the years after we went diving at Curacao, Seychelles, Puerto Rico, Hawaii, Mexico (Cenote diving).
We don't do it anymore, because we are too old for it. But the memories remain.