anything by Clive Cussler, mostly the Dirk Pitt series, but
some of the Curt Austin ones are good too..
in case you're wondering, those are his main characters.
his first several novels had Dirk Pitt as the 'hero,' so to speak,
and then, after a while, he retired Pitt and brought in
Austin. definitely worth reading.
Titles include:
- Shock Wave
- Inca Gold
- Blue Gold
- Raise the Titanic