some answers in-line in all caps.

Day 1 - morning arrival in Ensenada Honda, lunch and stroll in Dewey, then either taxi to Playa Flamenco or head to anchorage at Bahia de Almodovar.

FLAMENCO IS ONE OF THE MOST BEAUTIFUL BEACHES IN THE CARIBBEAN. HIGHLY RECOMMENDED. GOOD SERVICES THERE - DRINK AND EATS IN A KIOSK THEME.
I CAN'T COMMENT ON ALMODOVAR.

Day 2 - morning trip to Playa Tamarindo or Playa Carlos Rosario (depending on north swell) then afternoon/overnight at Cayo de Luis Pena.

IT'S AN HOUR RUN (INSIDE PASSAGE) BACK TO TAMARINDO FROM DEWEY. I LOVE THAT PLACE. THE JACUZZI'S ARE WORTH A VISIT - THEY ARE LOCATED WHERE THE MAIN ISLAND BREAKS DOWN ON THE RIGHT SIDE OF THE ANCHORAGE NEAR THE ENTRANCE. YOU CAN GET A DINGY IN THERE, BUT WE WALK IT IN THE LAST 100 YARDS.

GOOD/GREAT SNORKELING AT ROSARIO.

GREAT SNORKELING AT LOUIS PENA. GREAT SCUBA DIVING TOO.
I DID MY OPEN WATER QUAL DIVES THERE LAST YEAR.

Day 3 - spend day/overnight at Culebrita (or Ensenada Dakity if large north swell).

DAKITY IS SUPPOSED TO BE REALLY NICE, AND WE'VE NEVER MADE IT THERE. PLEASE LET US KNOW IF YOU DO!

Day 4 - back to USVI

IF YOU SAIL, TACK WAY SOUTH TOWARDS STX, AND THEN BACK TO CA WHEN BEARING ALLOWS. I WAS PRETTY IMPRESSED HOW CLOSE TO THE WIND WE COULD SAIL CUVEE. MUCH BETTER THAN OTHER CATS. WE WERE GETTING 8+ KNOTS CLOSE HAULED IN ABOUT 15-18 KTS OF TRUE WIND. AVOID MOTORING BETWEEN SAVANNA ISLAND AND STT. IT'S SAFE ENOUGH, BUT THE SEAS REALLY BUILD UP IN THERE.