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A Brilliant Blue Christmas Tree Worm, National Park Of American Samoa

A bright blue Christmas Tree worm growing from a cream-colored coral reef in the National Park of American Samoa
National Park Service
Monday, December 26, 2022

Named for its appearance, the Christmas Tree worm is a marine worm that lives on coral reefs. These worms are not very large - maybe a little less than two inches - and come in all sorts of colors. You might even see one while snorkeling the coral reefs of the National Park of American Samoa.

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The Essential RVing Guide

The Essential RVing Guide to the National Parks

The National Parks RVing Guide, aka the Essential RVing Guide To The National Parks, is the definitive guide for RVers seeking information on campgrounds in the National Park System where they can park their rigs. It's available for free for both iPhones and Android models.

This app is packed with RVing specific details on more than 250 campgrounds in more than 70 parks.

You'll also find stories about RVing in the parks, some tips if you've just recently turned into an RVer, and some planning suggestions. A bonus that wasn't in the previous eBook or PDF versions of this guide are feeds of Traveler content: you'll find our latest stories as well as our most recent podcasts just a click away.

So whether you have an iPhone or an Android, download this app and start exploring the campgrounds in the National Park System where you can park your rig.