Schedule information and boat ticketing is available from the travel booths at the floating restaurants.
Boats run to Kuala Tembling at 9AM, 10AM, and 2PM, costing RM35. From there, you can catch a bus to Kuala Lumpur RM40, Penang, Cameron Highlands, or other destinations.
A cheaper but much rougher option is to catch a public bus to Jerantut RM7. From Jerantut, there is air-conditioned bus and train service to Kuala Lumpur RM17 and other destinations.