The task is not free of mistakes, but it is possible to get a rough idea by fine-tuning a few variables. Your age may be between 18 or 54 years old, and you might have started surfing a long time ago. Or in the last year. No problem, let's have a go.

The first step it to find an accurate and fair mathematical formula. starts by adding the number of years you've been surfing. Years may be transformed into months, of course.
Then, imagine the number of surfing sessions you enjoy per week. Are you a weekend warrior or a loyal daily surfer? You can also ride waves twice per week. No worries.
Now, get an idea of how many waves you catch in each session. Let's say you ride 10 waves per hour, and you usually surf for one hour and a half: that's 15 waves. Fair enough, and we've got a final formula.
(Number of Surfing Years x Average Number of Weekly Sessions x 52 Weeks of the Year x Average Number of Waves per Surfing Session) = Number of Waves Ridden in Your Surfing Career
For instance, a surfer with 10 years of experience, and an average of a two-hour surf session per week, has enjoyed 10,400 waves.
With this final figure, we can go a little further by answering the following question: for how many hours have I been riding waves? The sum of all the waves of my life is a continuous ride of how long? Taking an average of seven seconds per wave, let's find out the final result:
10.400 Waves Ridden x 6 Seconds / 60 = Number of Continuous Minutes Surfing Waves
That would mean 1,040 minutes or 17,3 hours enjoying an imaginary and uninterrupted wave ride. Try it for yourself and enjoy each wave like if it was the last one.