Hi,
I made all these excursions on horseback, sorry that I cant?t give you the hiking-times.
1. Playa Madame: Small natural beach with an interesting cave. From LG follow the beach, pass the Grand Paradise Samana, go straight on for a while and then follow the traffic sign (there?s only ONE Playa Madame). You?ll find the cave when climbing up the hills from ca. the middle of the beach. If you like a nice view to Playa Madame, go to the end of the beach and climb up the hill there.
2. Playa Fronton: I needed 1.5 hours on muleback and around 20 min. of hiking to reach El Faro (don?t miss that: spectaclular view to Fronton, leguans, wild orchideas). After I climbed down to Fronton (half an hour, on the way down a small cave), on my way back we took the direct wy up the hills to reach the mule and needed the same time to go back to Las Galeras.
3. La Playita: Easily to reach from Las Galeras. Especially on weekends (Sundays from 16:00) Dominican fiesta with Merengue, Bachata...
4. Playa Colorodo: Nice small beach on the way to Playa Rincon. Sorry, that I can?t remember the way.
5. Playa Rincon: It?s far to hike from Las Galeras. Of course you can hike over there, following the beaches. But you also could take a watertaxi from LG, enjoy a boattour through the mangroves along the river, climb up the hills surrounding Playa Rincon with the spectacluar views on it.
For your security: Never take worthful things on your hikingtours!!! NADA!!! No watches, jewels, only the money you need, hidden close to your body. Nothing which could be of interest. I?m always with Dominican guides - but they also tell me not visit some beaches alone. So be carefull!
Sorry for my bad English