I had retirement thrust upon me, through redundancy, 8 years ago at the age of 58. The firm offered a pre-retirement seminar where one of the main things we were advised NOT to do was volunteer for charity work for at least 6 months after retirement. They are very easy to get into but difficult to get out of. Emotional blackmail was mentioned.
My wife continued to work for a further 2 years.
I have a reasonable pension from work which has recently been topped up by my state pension.
Since we are both retired we can get all the low price, last minute deals and have enjoyed quite a lot of travelling. (Nile cruise, Rome, Paris, Barcelona, London etc.)
We also have a touring caravan which we make good use of.
I took up wood turning, which I still enjoy, but seem to have less and less time to do it in.
I would advise go for it. It has turned into the best years of my life and don't forget, life isn't a rehearsal. Do all you can whilst you are still young enough to enjoy it.