As part of the "KROP - Kongsfjorden Rijpfjorden Observatory Programme" UiT The Arctic University of Norway and The Scottish Association for Marine Science maintain marine observatories (moorings) in two high-Arctic fjords in Svalbard: Kongsfjorden and Rijpfjorden. The observatories consists of an array of CTDs, temperature loggers, ADCPs and a sediment trap, in addition to various other instruments or installations that change from year to year. This dataset contains the CTD, PAR and fluorescence data from Kongsfjorden 2006-2007. Fluorescence data is given as raw voltage only, due to calibration and fouling issues. It is meant as an indication of the timing of the phytoplankton bloom, not as absolute chlorophyll a concentration. Fluorescence was logged with two ESM1 logger, not with SBE16+ as in the following years. Only one upward facing ADCP was deployed. And additional deep S4 current meter failed. No ePAR sensor was deployed. This is the last deployment on the northern side of Kongsfjorden, before the permanent location on the southern side was established from 2007 onwards.