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Bio Bay 2 days after full moon

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Bio Bay 2 days after full moon


I will be in Vieques July 4 which is the day after a full moon. Our last night is July 6th. I emailed Vieques Adventure Company and although they said they would be going to the bay, they were also not very assuring that it would be a good night. Has anyone gone right after a full moon? Honestly I was debating staying on Vieques Vs Culebra and chose Vieques just so we could do the bio tour..so i hope we could enjoy it!


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1. Re: Bio Bay 2 days after full moon

I asked this question on here a few months ago, so I'll repeat what I was told. The answer lies in the time that the moon rises. From what I understand, if you can complete the biobay tour before the moon rises, the viewing is good.

Here's a calendar that rates each date for biobay excursions.


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2. Re: Bio Bay 2 days after full moon

you should make AND keep the reservation. It's better than not going. and if it is cloudy, you will be in luck.

you just never know.

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3. Re: Bio Bay 2 days after full moon

ok...i think its worth a try. i think the moon rises 1.5 hours after sunset. here was the reply i got

"We put our seal of approval on the tour. We tour from 2 nights after the fullmoon to half moon. The first night or two is not a complete 2hrs of darkness but mostly. The week of new moon to half moon there is less and less dark moments so you are on a good night."

does anyone recommend doing the man groves tour before getting to mosquito bay at night?

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4. Re: Bio Bay 2 days after full moon

we were just in PR. May 6-10. we did bio bay on 9th. full moon was the saturday before. the night we went moon rose late and it was somewhat cloudy. we chose to do 6:00pm trip. we also did laguna grande in fajardo. i would go. it's worth the chance.

Edited: 22 May 2012, 13:55
Birmingham, AL
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5. Re: Bio Bay 2 days after full moon

We did the 2nd night after full moon in July 2011 with VAC. It was great. Cloudy, shower rolled in, which made the end of the tour interesting. Moonrise was after our 7pm tour finished up. It will be fine. Don't miss it.

6. Re: Bio Bay 2 days after full moon

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