The band comprises vocalist Jake Taylor, guitarists Eaven Dall and Ben Nairne, and drummer Conor Ward.

In early 2007, the band welcomed new drummer Caleb Burton and began to refine their sound, writing faster, heavier, more technical and melodic songs.

In December 2007, with an average age of just seventeen, the band began their 5-month studio recording schedule at SAE Institute in Byron Bay to produce their second EP with Scottish producer/engineer James Lyall, entitled The Gateway, which was self-financed by the producer and musicians and mixed by respected US engineer Daniel Castleman (As I Lay Dying, Winds of Plague).

[6] In June, the band toured Australia again to promote Earthwalker with support from Being as an Ocean, Dream On, Dreamer, Endless Heights, and Sierra.

The band then returned to North America the same year in the fall to support Parkway Drive on the "IRE Tour".

On 31 March 2016, as an April Fool's Day joke, the band unveiled the final piece in their three album series entitled Seaskimmer to be released 6 May 2016.

[22] Prior to the album's release, the band announced an Australian headline tour with While She Sleeps and Crossfaith in July 2017.

[24] In North America the band opened up for August Burns Red on their Messengers 10th Anniversary Tour with Protest the Hero and '68 as support.

To celebrate the release of Ark, the band embarked on their first beach clean-ups with fans for their newly created We Are Waterborne Initiative.

[26] The music video features an all-girl mosh pit and is accompanied by a message from the band regarding safety and self-expression for all fans at their shows.

[29] On 2 February 2018, the band released Ark Prevails, a four-track Ark companion EP that includes three "re-imagined" acoustic versions of the songs "Frequency", "Waterborne", and "Arrow", the latter of which features guest vocals from CJ Gilpin, frontwoman of the UK band Dream State, as well as a new ambient instrumental track entitled "Adrift (Outro)".

The release date of the EP was alluded to in the Ark album tray, which contained a hidden secret message that could be decoded using a cipher.

So today we finally reveal to you Ark Prevails, bonus re-imaginings of three tracks as well as a special ambient piece.

Some of these renditions you would have heard us play acoustically at our Marine Debris clean ups, which took place on the shores of waterways around the world.

They were joined along with Motionless in White, Simple Plan, Unearth, Every Time I Die, Wage War, Chelsea Grin, Crown the Empire, Nekrogoblikon and much more.

The tour was supported by Alpha Wolf and Drown This City, and was In Hearts Wake's only NSW, ACT & VIC shows for the year.

[38] On 10 April 2024, In Hearts Wake announced that bassist Kyle Erich departed from the band on good terms.

The Environmental Music Prize is a quest to find a theme song to inspire action on climate and conservation.