On the Cape fleas are not as concerning as Lyme carrying ticks. My vet recommended my dog be vaccinated. It is a two step process
For fleas my vet prescribed bravecto. I do not know if sand fleas are covered by it. I would check with your vet.
According the this article sand fleas can be bad for dogs. That said, we have never had an issue with them. We have our pooch on the beaches at home from Oct to May and on the cape in August.
This is where we take our dog. Also leashed dogs are permitted in the historic cemeteries in Provincetown.
Sorry if I mislead you. I was on the Cape Cod forum and did not realize I was responding to Orleans.
thanks - we are protected for Ticks. I just remember more than one sand-flea-induced misery from my childhood on the north shore. Glad to know I don't need to be neurotic about the dogs and sand fleas, just careful.
I'm looking at a box of Vectra 3D. It is applied topically where they can't lick it like between their shoulder blades and fleas is the number one pest mentioned. It works for about one month. It states that it is water resistant but maybe your dogs will be in swimming every day which could negate using a topical. Best to check with the vet.
Here's another consideration. Where are you staying? If the dogs pick up fleas then you well may infect your accommodations be they hotel, vacation home rental or home of a friend. Then you are into a long and costly process possibly displacing visitors who follow you. This is why dogs are not welcome at many vacation rentals.
from Town of Orleans web site below - you need to know these rules are enforced in all Cape towns -
Dogs are not allow on on the following beaches during the specified times of year:
North of Nauset Parking Lot - April 1st - Labor Day
South of Nauset Parking Lot to Trail #1 - April 1st - Labor Day
South of Trail #1 to Chatham Inlet - Must be on leash of not more than 30 ft. at all times April 1st - Labor Day (means off leash after Labor Day)
Skaket Beach - April 1st - Labor Day
Nauset Beach - April 1st - Labor Day