Blue Lagoon Beach Resort offers free park WIFI up to a maximum of 500mb per 24 hours. 

When you turn on your WIFI, select "Blue Lagoon Free WIFI". You will need to enter your cabin or site number, surname and accept the terms.  

Blue Lagoon sells two WIFI upgrade plans, available from reception and are valid for 7 days. 

Plan 1 - $30 for 6.5gb 

Plan 2 - $50 for 10gb