About Us

Neptune’s Divers Grand Cayman started operation in 1994. Neptune Divers has been providing divers with the best of what Grand Cayman has to offer for more than 23 years. Whether you’re brand new to diving or have multiple certifications, you can be sure that our professional and passionate staff will give you a personal experience, tailored to your specific ability and interests.

Our services include wreck, boat, and shore dives. Each are tailored for small groups and one-on-one so we can provide the best possible experience for you and your dive buddies.

Additionally, each member of the Neptune’s Diver’s team has at least a PADI Certified Instructor rating, so you can breathe easy knowing that your safety and satisfaction will be well taken care of.

We look forward to ensuring that your get the most out of your Cayman vacation with our flexible and personal service.

Our client base of repeat customers spans three generations of families learning to dive and diving with Neptune’s Divers.

Casey Keller – General Manager, PADI Instructor, Boat Captain
Casey Keller

Casey grew up in chilly Connecticut, and after many years of diving around the Caribbean, decided to make Grand Cayman her home. Casey joined Neptune’s Divers in 2000 as our manager. Casey’s passion for underwater photography and videography has helped many of our divers capture and bring home their wonderful underwater memories for years of enjoyment. Casey is a PADI certified Master Scuba Diver Trainer and has been teaching for over 13 years. Casey can train you from PADI Discover Scuba Diving all the way through PADI Divemaster. Casey is also the smiling voice when you call us, and handles all of our reservations. She goes the extra mile to ensure that your dive vacation is fun and runs smoothly.




Keith Keller – Founder, PADI Instructor, Boat Captain

Keith Keller

Keith grew up in Colorado, so it would be natural for him to gravitate from towards diving. Keith traveled to Grand Cayman in 1988 and began working for Don Foster’s. His work as a PADI Instructor quickly grew to being a boat captain, and manager. Keith decided to start his own business, and founded Neptune’s Divers in 1994. Since that time the operation has grown to two dive boats, and countless happy customers and students. Keith has been guiding and teaching divers on the island ever since and is a PADI Certified Instructor. Keith’s enthusiasm for the sport keeps bringing divers back again and again. Most recently Keith discovered an opportunity to expand on his other passion, Harley Motorcycles, and formed Cayman Custom Cycles. You can check them out at Cayman Custom Cycles.



Daniele Buttarelli – PADI Instructor, Boat Captain

Dani hails from Botticino, Italy, at the base of the Italian Alps. Most divers are also skiers, and Dani is no exception. He learned to ski at four years old, and moved to Sardinia when he turned fourteen, falling in love with the ocean, and immediately learned how to freedive. Learning how to dive at 30 years old cemented Dani’s future, and he started pursuing a career in Diving. Dani earned his PADI Instructor Certificate in Sardinia, and headed to the Red Sea to start his career. After working in Egypt, Sardinia, and the Bahamas, and finishing up his PADI Master Scuba Diver Trainer Certification, Dani moved to Cayman, and started working at Neptune’s Divers.

Robert Stuke – PADI Instructor

Bob comes to us from Palm Beach, Florida via Atlanta Georgia. Bob grew up participating in everything related to water, including competitive swimming, skiing, springboard diving, water polo, and of course scuba diving. Bob was NAUI certified in 1975, and started handling boat duties for his parents charter operation, leading trips and dives off Palm Beach, the Bahamas, Turks & Caicos, and Grand Cayman. Twice a year trips to Grand Cayman started the dream of eventually returning to Grand Cayman on a permanent basis. After college, a career in IT, and raising three kids, Bob returned to Grand Cayman as a PADI Certified Master Scuba Diver Trainer.