ISE stands for InnerSpace Explorers. It is an organization with the intent to promote underwater explorations in all its fascinating aspects. As it was founded in 2008 by internationally renown instructor and explorer Achim R. Schlöffel, the name of the company was chosen with care and purpose. InnerSpace Explorers was founded to support divers around the world, in their desire to receive the best training available. ISE offers the most demanding, challenging and intense training in the industry. Our training is free from all the marketing related advertising style contents, that you may find elsewhere. We are strictly focused on no nonsense education to enhance the thrill, safety and ultimately the fun of 'Your Passion'.


Upcoming Classes

Upgrade Basics of Exploration (BoE) Tec

from 2017-09-23 to 2017-09-24 in Germany (Details)

Cave Explorer Level I

from 2017-09-25 to 2017-09-30 in Spain (Details)

Exploration Diver Level I

from 2017-09-25 to 2017-09-29 in Spain (Details)

Basics of Exploration (BoE) TEC

from 2017-09-26 to 2017-09-30 in Switzerland (Details)


from 2017-10-01 to 2017-10-05 in Malta (Details)

New Ise Product

New iSE Fleece Jacket

Fleece Jacket with ISE Logo on the back and optional Personalization on the Shirt collar. to the shop.

Latest Articles

Updated Sidemount manual

we just uploaded our updated sidemount manual (4.0) please make sure your material is up to date. (more)

How to become an ISE instructor

As the question comes up frequently and it looks like people do not find all the information they are looking for on the website, we will give a bit more ... (more)

ISE Manuals in Dutch

We are happy to annouce that the first ISE Manuals are online in Dutch. You can download BoE / BoE+/ Eco-Diver. More will be online soon. A BIG Thank You ... (more)

General Update

We would like to inform you about some news within InnerSpace Explorers: - We rebuilt and launched the ISE Shop where You can now directly purchase ISE merchandize and more. ... (more)

Manual Update Expl. Diver Level II

We just updated the Exploration Diver Level 2 manual to verion 3.0. The manual is available in english. It is ready for you in the download area. (more)

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