What is the ride length of waves in an intermediate surf session? November 21, 2019 03:37 Updated Follow The waves will run for around 8-10 seconds, allowing for multiple manoeuvres each wave. Related articles What are the intermediate surf session waves like? How many waves will I catch per hour? How do you manage crowds? What happens if there is bad or inclement weather? What is your change, cancellation and refund policy?