There is a road from Tambobong to Balinmanok but its not very vehicle friendly so the best way to go there is via banca/boat.
The beach is clean and the water is clear. But the best thing about Balinmanok is the shipwreck site just 50 meters from shore. I did some research but was not able to get the name of the ship so I'll just call it the Balinmanok wreck.
There is a very interesting story with that wreck site. It was a Chinese vessel carrying an assortment of cargo, including a huge load of shabu (crystal meth) - about 600kilos, coming in from the South China sea. There was a storm and the ship accidentally dropped its anchor near the island of Hermana Mayor (about 1 hour from Tambobong). The hull of the ship got damaged and she began taking in water.
The crew offloaded the "precious cargo" but they were apprehended near the town of Infanta. The authorities were able to seize about 250 kilos of shabu, the rest of the cargo vanished without a trace.
The ship was towed to where it is right now - in front of a beach in Sitio Balinmanok. The wreck site is now a nice snorkeling area.
The area near the shipwreck is also a good place to spearfish for your lunch :).