Tour Groups - there are many outfits offering tours to Sepilok via Sandakan and will take is the other nearby attractions.
Turtle eggs, while illegal, are obtainable at the local wet market at a very cheap rate. Bringing it out, or even buying it, when found by the custom officers or wildlife officers can really ruin your trip as they will press charges again you. Do not try!Do not get caught with turtle eggs in your luggage as police and customs officials will take a very serious view of this.