Any suggestions on a fun novel written in English and set in Costa Rica?

Jurassic Park?

There is a neat little volume called "A Traveler's Literary Companion - Costa Rica," edited by Barbara Ras with a foreward by Oscar Arias. It is a collection of short stories written by Costa Rican authors.
Published by Whereabouts Press, San Francisco
http://www.whereaboutspress.com/

The only thing our public library had was Assault on Paradise. However, it wasn't a cheerful little read. It is set in colonial Costa Rica and is more about conflict - between the Spaniards and the Costa Ricans, between the author and others, between the author's way of life in Spain and in Costa Rica. Also, quite a lot about the Spanish Inquisition. Gee, sounds terrific! Actually a good book, but not very vacation-y.

Hmmm. Well, I guess I'll look into the Literary Companion. Thanks all.

There is a childrens book, geared to middle school age, called The Divide. It is a fantasy that takes place in the mountains of Costa Rica, I believe near Monteverde. Ruth in Maine.

Interesting reading is Monkey's are Made of Chocolate by Jack Ewing. The forward describes the book as "a tapestry of stories as rich as the land from which they came. In the three decades which the storyteller has been here, he has seen and learned many things, some amusing, some shocking, but all fascinating. This book is a selection of Jack's thoughts and experiences which over the years he has put down in words ..." Amazon carries the book and has a few reviews, all of them favorable. All the essays are short chapters and good for easy vacation reading. I think you'll enjoy it!

Lisa in Manuel Antonio

You might want to consider "Mosquito Coast" by Paul Theroux. It takes place in Central America, in an area that I think might be comparable to the Caribbean coast of Costa Rica. IIt was made into a movie.

I actually second the idea of Jurassic Park for the reason that some of the first one was filmed in CR. I'm told.