I'm about five years away from retirement. I have some ideas on what I'd like to do afterwards that would give me the chance to develop some new skills, and wonder what I should do now to be ready.
Planning ahead gives you time to prepare, so make a plan and take action.
The inner game
Take a step back, focusing first on what you'd like in post-retirement life. What aspects of your current professional life would you like to maintain? What would you like to move away from? Consider interests you've had and skills you haven't had a chance to use, and think about how important it is to engage them.
Think more about your ideas about next steps from the perspective of their fit with your hopes and your vision for yourself. Imagine yourself in new roles. Take note of where they fit and don't seem to fit. If it's because, upon reflection, they don't appeal to you, drop them from your list. However, if the barriers are more related to skills or experiences you'd need to be successful, keep them in the hopper for more consideration.
Finally, do a reality check on how much time, effort and resources you want to put into this preparation. This could range from going back to school, to doing some independent study, to taking on volunteer commitments that give you hands-on experience. Be realistic so you don't have a mismatch between your hopes and your preparedness. Check with a financial planner, too, to ensure that you're managing the financial side of retirement well and can afford your dreams.
The outer game
Moving on to additional exploration, have in mind a small set of possible "finalists." For each, make a plan to learn more about it. This could include informational interviews, online research or conversations with career resource centers (yes, even for retirement job changes).